mswitch r6.0 overview e sz v1.0 (1)

8/13/2019 mSwitch R6.0 Overview E Sz v1.0 (1)

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mSwitchSystem Overview

Release 6.0

Doc. Code L3 H010 6000 03 100 01


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Copyright 2006-2008 UTStarcom, Inc. All rights reserved.

No part of this documentation may be reproduced in any form or by any means or

used to make any derivative work (such as translation, transformation, or adaptation)

without prior, express and written permission from UTStarcom, Inc.

UTStarcom, Inc. reserves the right to revise this documentation and to make changes

in content from time to time without obligation on the part of UTStarcom, Inc. to

provide notification of such revision or changes.

UTStarcom, Inc. provides this documentation without warranty of any kind, implied or

expressed, including but not limited to, the implied warranties of merchantability and

fitness for a particular purpose. UTStarcom may make improvements or changes in

the product(s) and/or the program(s) described in this documentation at any time.

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If you are a United States government agency, then this documentation and the

software described herein are provided to you subject to the following:

United States Government Legend: All technical data and computer software is

commercial in nature and developed solely at private expense. Software is deliveredas Commercial Computer Software as defined in DFARS 252.227-7014 (June 1995)

or as a commercial item as defined in FAR 2.101(a) and as such is provided with only

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mSwitch System Overview

Contents

About This Guide ........................................................................................................1

Introduction........................................................................................................................1

Audience............................................................................................................................2

Conventions.......................................................................................................................2

Notices...........................................................................................................................2

Text................................................................................................................................2

Figures and Screen Captures .......................................................................................3

1 Overv iew .............................................................................................................5

Typical Networking Architecture........................................................................................5

System Characteristics......................................................................................................8

System Features .............................................................................................................10

System-Level Features ...............................................................................................10

Carrier-Level Features ................................................................................................11

Subscriber-Level Features ..........................................................................................12

NGN Applications ............................................................................................................29

Basic C4/C5 Service ...................................................................................................29

Multiple Signaling Protocols ........................................................................................30

Routing and Digit Analysis ..........................................................................................31

Supplementary Services .............................................................................................31

IP Centrex/Host IP Centrex (applicable to UTSmart terminal)....................................32

Value-added Service and Intelligent Service ..............................................................34

UTSmart Softphone.....................................................................................................34

Fixed-Mobile Convergence .........................................................................................34

mBOSS........................................................................................................................35

Operation and Maintenance........................................................................................37

Regulatory ...................................................................................................................38

System Redundancy and Reliability............................................................................39

New Features in mSwitch R5.4 .......................................................................................39

New Features in mSwitch R5.4.1 ....................................................................................39




2 Typical Appl ications ........................................................................................49

Tandem-Level Networking Solution ................................................................................49

Access of Multiple Terminal Types..................................................................................50

Typical Solution to PHS Network ....................................................................................51


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System Overview mSwitch

Interconnection between PHS Terminals....................................................................51

Interconnection between PHS Terminals and PSTN Terminals .................................52

Typical Solution to VoIP Network ....................................................................................52

Interconnection between VoIP Terminals....................................................................53

Interconnection between VoIP Terminals and PSTN Terminals.................................53

3 Typical Service Solut ions ...............................................................................55

Q-Box Service Solution....................................................................................................55

Centrex Service Solution.................................................................................................57

iNumber Service Solution................................................................................................62

CRBT Service Solution ....................................................................................................64

PBMS Solution.................................................................................................................68

FMC Solution ...................................................................................................................70

SIM Card Roaming Service Solution...............................................................................72

Networking Model........................................................................................................72

Service Logic ...............................................................................................................75

Call Flow ......................................................................................................................78

SIM-Based IP Terminal Subscriber Solution (release to PLDT only)..............................86

iWeSee Service ...............................................................................................................87

4 System Functional Components .................................................................... 91

Introduction to mSwitch Platform.....................................................................................91

Components in Service/application Layer .......................................................................93

Parlay GW ...................................................................................................................94

Parlay APP ..................................................................................................................95

Feature Server.............................................................................................................95

Components in Control Layer..........................................................................................98

iCS-P ...........................................................................................................................98

Transaction Server ................................................................................................... 101

HLR........................................................................................................................... 104

VLR........................................................................................................................... 105

SAU .......................................................................................................................... 106

CPS2100 .................................................................................................................. 110

Components in Access Layer....................................................................................... 113

iUMG......................................................................................................................... 113

iSG3200.................................................................................................................... 114

iSG5.6....................................................................................................................... 116

iMS............................................................................................................................ 121

iAN-8000................................................................................................................... 122

Components in Operation Support Layer ..................................................................... 129


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List of Tables

Table 1Supplementary Services Available to PHS Subscribers ..............................................12

Table 2Supplementary Services Available to IP Terminal Subscribers / V5 POTS Subscribers...........................................................................................................................................14

Table 3ANSI Standard-Compatible Supplementary Services..................................................16

Table 4VAS Provided by mSwitch System...............................................................................17

Table 5IN Services Supported in the mSwitch System............................................................23

Table 6iCS-P Performance Specifications ............................................................................ 101

Table 7Usage of CPS-Provided Standard Protocol Stack by NEs in mSwitch Network....... 112

Table 8Optical Interface Specifications................................................................................. 114

Table 9Electrical Interface Specifications.............................................................................. 114

Table 10iSG5.6 Performance Specifications......................................................................... 118

Table 11iSG5.6 External Interfaces and Protocol Specifications.......................................... 119

Table 12iSG5.6 Physical Specifications................................................................................ 119

Table 13Power Consumptions of the iSG5.6 Key Boards .................................................... 120

Table 14Environmental Specifications .................................................................................. 120

Table 15Power Module Specifications .................................................................................. 121

Table 16Performance Specifications..................................................................................... 122

Table 17 Reliability Specifications.......................................................................................... 122

Table 18System Performance............................................................................................... 151

Table 19Interface and Protocols............................................................................................ 151

Table 20NE Specifications .................................................................................................... 151


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List of Figures

Figure 1mSwitch System Architecture.......................................................................................6

Figure 2Class 4 Solution Provided by the mSwitch.................................................................49

Figure 3 Class 5 Solution..........................................................................................................50

Figure 4Interconnection between PHS Terminals in mSwitch Network ..................................51

Figure 5Interconnection between PHS Terminals in mSwitch Network and Terminals in PSTN

...........................................................................................................................................52

Figure 6Interconnection between VoIP Terminals in mSwitch Network ..................................53

Figure 7Interconnection between VoIP Terminals in mSwitch Network and Terminals in PSTN

...........................................................................................................................................54

Figure 8Solution to Q-Box Service .........................................................................................57

Figure 9Solution to iNumber Service .......................................................................................64

Figure 10Solution to CRBT Service.........................................................................................67

Figure 11Solution to Phone Bar Management System............................................................69

Figure 12SIM Card Roaming Service Solution........................................................................73

Figure 13Call Flow for a SIM Card Roaming Service Subscribers Request for Registration in

Visited Network and Location Information Update ............................................................78

Figure 14Call Flow for SIM Card Roaming Service Subscribers Request for Activating Follow

Me to Home Logic and registering a New Follow Me to Home Number at the Visited Site

...........................................................................................................................................79

Figure 15Call Flow for IDD Calls Made by SIM Card Roaming Service Subscriber from the

Visited Site.........................................................................................................................81

Figure 16Call Flow for Calls Originated from a Hunt Me Number to a SIM Card Roaming

Service Subscriber at the Visited Country.........................................................................83

Figure 17Call Flow for SIM Card Roaming Service Subscribers VMS Request.....................84

Figure 18SIM-Based IP Terminal Subscriber Solution............................................................86

Figure 19External Interfaces of mSwitch Network Elements...................................................86

Figure 20iWeSee Service Implementation Architecture ..........................................................90

Figure 21 4U Chassis (Front View)...........................................................................................92

Figure 22 4U Chassis (Front View)...........................................................................................93

Figure 234U Chassis (Rear View) ...........................................................................................93

Figure 24Parlay API Structure .................................................................................................94

Figure 25Location of the FS in mSwitch Network....................................................................96

Figure 26Position of FS Acting as USSD Server in mSwitch Network ....................................97

Figure 27External Interfaces of the iCS-P ...............................................................................99

Figure 28TS External Interfaces and Protocols.....................................................................103

Figure 29Protocol Conversion through HLR..........................................................................105

Figure 30Protocol Conversion through VLR..........................................................................106

Figure 31 SAU Architecture ....................................................................................................106


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Figure 32FS + SAU Functioning as SCP.............................................................................. 107

Figure 33GHLR and GVLR Deployed in WiFi/GSM FMC Solution....................................... 108

Figure 34CHLR and CVLR Deployed in WiFi/CDMA FMC Solution..................................... 109

Figure 35HLR Deployed in SIM Card Roaming Service Solution......................................... 110

Figure 36Position of CPS2100 in Network............................................................................ 111

Figure 37iUMG External Interfaces....................................................................................... 113

Figure 38Signaling Conversion between mSwitch and PSTN/IN enabled by iSG ............... 115

Figure 39iSG External Interfaces.......................................................................................... 116

Figure 40Position of iSG5.6 in mSwitch Network ................................................................. 117

Figure 41iAN-8000 Network Topology.................................................................................. 123

Figure 42NGN Migration ....................................................................................................... 128

Figure 43Architecture Conformance between mSwitch O/M Modules and TMN Layers ..... 129

Figure 44Three- layer Structure of CN SNMS ...................................................................... 130

Figure 45NEs Managed by CN SNMS.................................................................................. 131

Figure 46NEs communicating with SAM............................................................................... 132

Figure 47OBS Architecture and External Interfaces............................................................. 134

Figure 48OBS Background Administration Flow................................................................... 135

Figure 49Reseller Management System Structure ............................................................... 136

Figure 50System Billing Data Paths ..................................................................................... 137

Figure 51CSS Architecture ................................................................................................... 138

Figure 52An Exemplary CSS Website Main Page................................................................ 139

Figure 53Administration Center Login Page......................................................................... 140

Figure 54CSS Supports C-mode Service ............................................................................. 140

Figure 55 ESS Architecture.................................................................................................... 141

Figure 56Customer Rental System Network Structure......................................................... 143

Figure 57Hotel Broadband Network...................................................................................... 145

Figure 58 IVR-1000 Architecture............................................................................................ 146


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About This Guide

Introduction

The mSwitch System Overview is intended to give an overall idea of the mSwitch

system products to users. Being a reference document, this guide covers multiple

mSwitch networking applications to meet multiple market requirements. Different

markets might only use one or several of the solutions described in the guide. This

guide cannot be used as a contract clause to provision all services for users.

This guide is applicable to UTStarcom mSwitch R6.0 and earlier mSwitch R5.x

releases.

This document provides a systematic and comprehensive description of the mSwitch

system. It includes the following chapters:

Chapter 1Overview

This chapter introduces the architecture, features, subscriber types, service functions,

and system availability of the mSwitch system, familiarizes the user with the whole

system.

Chapter 2Typical Applications

This chapter describes the wireless and wire line applications of mSwitch, including

PHS solution, VoIP solution, C4 solution, C5 solution, IN service solution, and VoIP

solution that cooperates with 3G network.

Chapter 3Typical Service Solutions

This chapter describes the typical service solutions implemented in the mSwitch

system, including Q-box service, Centrex service, iNumber service, CRBT service,

and Phone Bar service, SIM Card Roaming service.

Chapter 4System Functional Components

This chapter introduces the mSwitch hardware platform and various functional

components of the system, including components in control layer, service/application

layer, access layer, operation support layer, as well as their features, architectures

and functions.

Chapter 5System Disaster Tolerance Solution

This chapter describes the disaster tolerance solution of the system.

Chapter 6 Performance Specifications

This chapter lists technical parameters of mSwitch system.

Appendix ACompliant Specifications and Standards

Appendix BAcronyms


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2 About This Guide


Audience

Core Network Technical Engineers and Executives

Operation Support Network Technical Engineers and Executives

System Engineers

Installation Engineers

Operation & Maintenance Engineers

Conventions

This guide may contain notices, figures, screen captures, and certain text

conventions.

Notices

The following table lists notice icons used in this guide.

Icon Not ice Type Descrip tion

NoteInformation that contains important features or instructions but is nothazard-related.

Caution

Information to alert of potential damage to a program, data, system, ordevice. If not avoided, may result in minor or moderate damage. It mayalso alert against unsafe practices and potential program, data, system,device damage.

WarningInformation to alert of operations that may cause potential accident,casualty, personal injury, fatality or potential electrical hazard. If notavoided, could result in death or serious injury.

ESDInformation that indicates proper grounding precautions is requiredbefore handling a product.

Text

The following table lists text conventions in this guide.

Convention Description

Text represented byCour i er New Font

Thi s t ypef acerepresents text that appears on a terminalscreen, including, configuration file names (only for system

output file names), and command names, for example l ogi n.

Commands entered by users are represented bybold, for

example, cd $HOME.

Text represented by boldThis typeface represents window names, dialog box names,tabs, field names, function names, directory, file names, processnames, and commands in text, for example, set the Timefield.

Text represented by [Menu]and [Menu/Sub-menu]

This square brackets represents menus such as [File], and[File/New]

Text represented by

This angle bracket represents button on screen, function key onthe keyboard and icon names for example, click .

Text represented byDocument Name

This typeface represents documents for reference, for example,Netman 2020 Installation Guide


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About This Guide 3


Convention Description

Text represented by

# Fi l e f or mat: This typeface represents files in Unix/Linux system files.

Figures and Screen Captures

This guide provides figures and screen captures as example. These examples

contain sample data. This data may vary from the actual data on an installed system.


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1Overview

The softswitch technology is the core of the next generation network (NGN). Itimplements an architecture that uses softswitch-enabled call servers to separate call

control from transmission, and application servers to separate call service

provisioning from call control. This softswitch architecture is based on a broadband

packet-switched network infrastructure, with standard interfaces between different

system units, and an open structure that delivers reduced cost in both operating and

service development. It is a perfect architecture for carriers to migrate from traditional

circuit-switched network to the NGN.

The mSwitch system is a softswitch network product developed by UTStarcom for the

next generation network (NGN). It is based on softswitch architecture, delivering a

unified and fully IP-based solution to voice, data, fax, Internet content, and various

broadband services for subscribers accessed through different interfaces.

The mSwitch system also supports intercommunication with PSTN, third party

softswitch system (interconnected through SIP-T/BICC), and third party VoIP system

(interconnected through H.323 or SIP). It is an ideal system to construct the next

generation network.

Typical Networking Architecture

Logically, the mSwitch network consists of four layers: OSS, Service/Application,

Control, and Access.

The Access layer supports various types of terminals which primarily can be divided

into three categories:

PHS terminals, which access the system through CSC/RPC (connected to the

iUMG through the E1 interfaces using Q.921/Q.931 protocol).

IP terminals, which access the system through IP network; the mSwitch system

supports various types of VoIP protocols (such as SIP, H.323, MGCP), hence

various types of VoIP terminals (such as MGCP IP phone, MGCP iAD, H.323 IP

phone, H.323 iAD, SIP IP phone, and UTSmart PC phone).

POTS terminals, which access the mSwitch system through iAN-8000

(connected to the iUMG using V5 protocol).

The OSS (Operation Support System) and Service/Application layers form a unified

multi-service platform for subscribers using different types of terminals.

The Control layer undertakes call processing, media conversion, and so on, and in

particular, coordinates with the Access layer to enable service provision for PSTN

subscribers.

1


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6 Chapter 1 Overview


Figure 1 mSwitch System Architecture

iAN-2000

iAN-08E1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

NetEdge2024AL

iAN-2000

SG

i M S 4 0 0 0

CS-A/CS-T /M S

CS-A/CS-T /M S

RPC

iAN-2000

As shown in Figure 1,the mSwitch system consists of the following components

working in four layers, which are described as below:


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Chapter 1 Overview 7


Operation Support Layer

- Core Network Sub-Network Management System (CN SNMS): provides

functions such as system configuration, performance management, control &

status management, and alarm management.

- Subscriber Application Management System (SAM): provides functions suchas Point-of-Sale handling, resource management, staff management, and

CDR metering, and so on.

- Online Billing System (OBS): provides functions such as multi-service billing,

billing policy formulation, billing data processing, accounting, performing

statistics and analysis.

- Customer Self-Service System (CSS): establishes connections between

databases and customer to enable various customer self-care functions.

- Prepaid Service Center (PSC) / Accounting Center (AC): responsible for

collecting and processing CDRs generated within the mSwitch system,

supporting both prepaid and postpaid CDRs, and in particular, able to deliver

real-time billing functions needed in prepaid service, such as calculating

Allowed Call Time, debit prepaid subscribers deposit balance.

- Charging Gateway (CG): interfaces with third party billing systems, and

collects CDRs generated within the whole network and sends related billing

data to third party billing systems.

- RADIUS Server: implements the authentication and accounting functions for

broadband, WLAN and 3G subscribers. RADIUS Server acts as a

component of billing support system to be applied to different networks.

Service and Application Layer

- Feature Server: enables local SCF to provide VAS functions, such as Calling

Card, Prepaid services.

- Application Server: serves as an entity for service provisioning;

communicates with the Open API provided by the Parlay GW in the mSwitch

system, or with the Call Server through the standard SIP provided by iCS-P.

- Parlay GW: provides standard Parlay API for various applications, including

those provided by third parties.

- Parlay APP: it is the service application of the Parlay platform, which

interconnects with Parlay GW through Parlay API.

Control Layer

- IP-Based Call Server (iCS-P): serves as a C5 call server to provide call

processing functions for various types of subscribers in the PHS and VoIPnetworks, and in C4 application, as a tandem office or a gateway office. As a

call server, iCS-P undertakes number analysis, call connection, routing, and

media resource control. It is one of the important components in mSwitch

core network.

- Subscriber Location Register (SLR): manages and maintains subscribers

profiles, location information, and provides various functions needed during

call connection, such as authentication, authorization, address translation

and route analysis. And also, it supports several supplementary services

provision.


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- Home Location Register (HLR): stores the location information of local

subscribers.

- Visited Location Register (VLR): stores the current location information of

the visiting subscribers.

Access Layer

The access layer contains two types of entities, Access Gateways and terminals

as described below:

- Signaling Gateway (iSG): provides signaling interface between mSwitch and

PSTN/IN.

- Integrated Media Gateway (iUMG): serves as a media gateway to provide

access, media conversion and switching services for PHS subscribers, and

as a trunking gateway to complete media conversion between IP-based and

TDM-based network.

- IP-based Media Server (iMS): controlled and managed by iCS-P to deliver

media services to IP terminals, such as announcement playback, mediaresource needed in conference, and so on.

- The access layer contains terminals of different types as listed below:

a PHS phone

b V5 POTS phone

c H.323 IP phone

d MGCP/H.248 IP phone

e SIP IP phone

f Integrated Access Device (iAD): accesses the mSwitch system using

MGCP/H.323 protocol.

g iAN-8000: accesses the mSwitch system using MGCP/H.248 protocol, or

through iUMG and using V5 protocol.

h UTSmart PC phone

System Characteristics

The significant highlights of the mSwitch system are its unified IP-based platform,

multi-protocol, multi-service and multi-access, as described below.

IP-based and softswitch-enabled transmission network

The mSwitch network features an IP-based and softswitch-enabled transmission

network, with its IP packet transmission layer, control layer, call processing layer

and application layer separated one another. Hence, the access, switching,

service provisioning, and HLR/VLR function are all implemented separately; the

switching functions is implemented in the IP-based transmission layer, and the

other functions are implemented in Client/Server mode above the IP layer. This

optimizes the network structure and reduces the complexity and cost of the

network infrastructure.

Multi-protocol support


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The mSwitch supports various TDM-based and IP-based protocols, such as SS7

TUP/ISUP, INAP, SIGTRAN, SCTP, MTP, wireless Q.931, V5.X, ISDN PRI,

MGCP/H.248, H.323, SIP, MEGACO, SCTP, SIP-T, SNMP, as well as the

conversion among these protocols.

Large processing capacity

The iCS-P in the mSwitch system can deliver up to 1.5M BHCA of processing

capability for ISUP-ISUP calls when the iCS-P working as a C4 call server, and

3M BHCA for ISUP-IP calls.

Multi-access support

The mSwitch supports multi-access, such as wireless access through standard

PHS air interface, V5.x wire line access, and IP-based MGCP/H.248, H.323, SIP,

iAN-8000 access.

Unified multi-service platform

The mSwitch employs a unified platform to provide telecom and network services,such as voice over TDM, VoIP and telecommunications supplementary services,

as well as various types of VAS, such as PIAFS, c-mode wireless data service,

SMS, MCN, Centrex and prepaid service. It also offers a unified service switching

platform to support various traditional IN services, such as FPH (Free Phone),

ACC (Accounting Card Calling), VPN (Virtual Private Network), UPT (Universal

Personal Telecommunication), and so on. The mSwitch system is also equipped

with a service provisioning system compliant to Parlay API standards, which

provides iNumber service and shortcut to implement more newly developed

services. By using enhanced AS/MS, mSwitch system can also provide various

enhanced IP services, such as Web-Conferencing (WC) and Unified Messaging

(UM).

High performance softswitch control platform

The mSwitch uses a powerful softswitch control platform to enable various

softswitch real-time logics, such as authentication, authorization, address parsing,

roaming, routing, real-time billing, and so on.

Support for multiple networking solutions

The mSwitch system employs a subscriber data center which is separated from

switching. This mobile softswitching system architecture is able to support

multiple networking solutions for different service requirements.

Powerful Operation Support System

The mSwitch employs powerful server clusters to support various back office

management functions, such as subscriber management, on-line billing,

customer self service, network management and operation and maintenance. It

provides service operators with comprehensive and effective tools for system

operation and maintenance as well as service provisioning.

High Availability

The mSwitch system has a high availability level of 99.999% as required in

telecommunication system.


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- The system supports seamless system upgrade, without interrupting service

provisioning.

- In the mSwitch system, all key functional boards running on mSwitch

hardware platform, such as MPU, HSM, PPU, CLK, DSP, SEM, and DPS,

support hot-swap and redundancy.- MPU supports warm standby, which results in no billing data lost during

switch-over.

- Power supply modules (DPS) support redundancy and load sharing.

- Under the control from SLR, iCS-P provides n+1 redundancy and warm

standby.

- Under the control from iCS-P, iUMG/iMS provides n+1 redundancy and

warm standby.

- iSG supports 1+1 redundancy and warm standby.

- Applications such as SLR, PSC, etc. support dual NIC configuration.

- SLR/PSC supports n+1 redundancy; loads can be shared among theseSLRs.

- MCNC supports 1+1 load sharing.

- Heartbeat mechanism is used among the systems key modules, for

example, the heartbeat between SLR/RS/PSC, and that between

SLR/RS/PSC and CS or CN SNMS.

- Dual OSS DB servers, with RAID disk system, ensure data security, and

optional dedicated backup server.

- In system networking, all IP links have redundant backups.

- MTBF > 400,000 hours

- MTTR < 30 minutes

System Features

The mSwitch system provides an IP-based total solution for various types of

subscribers, including mobile terminals accessing through air interfaces, POTS

terminals accessing through access devices, and IP terminals accessing through

broadband network.

System-Level Features

Multi-protocol Support

The mSwitch system supports:

Trunking gateway control protocol: MEGACO/H.248

SIGTRAN protocol for SS7 signaling encapsulation

H.323 and SIP-I protocols, needed to enable the interconnection with third party

VoIP networks

PRI, ISUP and TCAP/INAP, needed to enable the interconnection with PSTN.


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Interworking with PSTN

The mSwitch system supports:

ITU SS7 signaling

ANSI SS7 signaling SIGTRAN protocol (including M3UA, M2UA and IUA)

T.38 protocol on the SIP trunk side and MGCP and H.248-based access side

Up to 128 SS7 signaling links per SG, also redundancy have been taken into

consideration

INAP protocol, which enables communication with SCP in SS7 network needed

in intelligent network service provisioning.

T1/E1 PRI and R2 protocols, needed by trunking gateway for interworking with

PSTN

Various types of media codecs:

- G.711

- G.723.1

- G.726

- G.729A/B

Carrier-Level Features

Call Control

Emergency call

Subscriber authentication, authorization and access control Calling number and called number analysis and routing

Subscriber information management

Announcement configuration (multiple languages supported)

NMS Features

Supports SNMP v2.

Provides NMS GUI for configuration management, performance management,

fault management, and system security management.

Provides NMS operator management functions.

Types of Subscribers Supported

The mSwitch system provides access support for various terminal subscribers.

PHS (access through iUMG)

V5 POTS (access through iAN-8000)

IP-based POTS (access through iAN-8000/iAD)

IP terminals, include

- MGCP/H.248 IP phone, MGCP/H.248 iAD


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- H.323 phone, H.323 iAD

- SIP phone

- UTSmart PC phone (SIP-enabled)

Besides, the mSwitch system supports interconnection with third party networks, such

as interconnecting with PSTN, supporting communications between subscribers in

local network and those in PSTN; interconnecting with third party H.323 network,

supporting communications between subscribers in local network and those in third

party H.223 network; interconnecting with third party SIP network (through SIP-T),

supporting communications between subscribers in local network and those in third

party SIP network; and interconnecting with third party PHS network (through MAP),

supporting PHS communications and roaming among PHS systems provided by

different service providers.

Subscriber-Level Features

Basic Services

Voice service

Voice over IP service (VoIP)

Circuit-switched data service (including analog dial-up services and basic fax

services)

Audio/Visual call

Emergency call service (fire alarm, police alarm, and so on, supporting call

routing to nearest local alarm center)

Special service (1xx, 2xx, and so on)

Supplementary Services

Table 1lists the supplementary services that the mSwitch provides for PHS

subscribers.

Table 1 Supplementary Services Available to PHS Subscribers

No. Suppl ementary Service PHS Remarks

1. Abbreviated Dialing

2. Outgoing Call Barring

3. Incoming Call Barring

4. Do Not Disturb service

5. Malicious Call Identification

6. Alarm Call service


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Table 2lists the supplementary services that the mSwitch system provides for IP

terminal subscribers and V5 POTS subscribers in NGN applications.

Table 2 Supplementary Services Available to IP Terminal Subscribers / V5 POTSSubscribers

No Suppl ementary Service H.323TerminalSubscribers

MGCP/H.248 TerminalSubscribers

SIPTerminalSubscribers

V5 POTSSubscribers

Remarks

1. Abbreviated Dialing

2. Hotline Service X X

3. Outgoing Call Barring

4. One-time Debarring X Available inmSwitch Release5.5 and later

5. Incoming Call Barring -

Available inmSwitch Release

5.6 and later

6. Do Not Disturb Service X

7. Malicious Call Identification X X

8. Alarm Call Service (Casual) -

9. Alarm Call Service - - - Available inmSwitch Release5.6.5 and later forBrazil

10. Wake up Service (Regular) - No announcementplayed for SIPterminal

subscribers

11. Interception Calls

12. Absent Subscriber Service

13. Call Forwarding Unconditional(CFU)

The CDRforwardedcontains anoriginal calleeidentifier, whichcan be configuredthrough OBS, andis used to specify

whether theoriginal callee is tobe charged forroaming serviceand by what tariffrate the callee isto be charged.

14. Call Forwarding No Reply (CFNR)

15. Call Forwarding Busy (CFB)

16. Call Forwarding Operator Activation(CFOA)

- - - Available inmSwitch Release5.6.5 and later


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V5 POTSSubscribers

Remarks

17. Call Waiting (CW) X

18. Call Hold X Available inmSwitch Release5.6.5 and later forordinary NGNsubscribers

19. Call Transfer

(UnattendedTransferavailable inmSwitch R6.0and later)

Available inmSwitch Release5.6.5 and later forordinary NGNsubscribers

20. Three Party Service X X Whether SIPsubscriber canuse this servicedepends onterminal functions.It is required thatthe terminalinitiate a new callafter a connectionhas been created(available inmSwitch Release5.3 and later)

21. Conference Service X

22. Calling Line IdentificationPresentation (CLIP)

IP terminal needsto support CLIP

23. Calling Line Identification Restriction(CLIR)

IP terminal needsto support CLIP

24. Call Destination Restriction/Outgoing Blacklist

25. Call Destination Restriction/Incoming Blacklist

26. Call Destination Connection/Outgoing Whitelist

27. Anonymous Call Rejection (ACR) Available inmSwitch Release5.5 and later

28. Automatic Callback (AC) Available inmSwitch Release5.5 and later

29. Automatic Recall (AR) Available inmSwitch Release5.5 and later

30. Call Back on Busy X X Available inmSwitch Release5.6.5 and later


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V5 POTSSubscribers

Remarks

31. Multiline Hunt Service (MLH) - Available inmSwitch Release5.6 and later

32. Last Number Redial Available inmSwitch Release5.6.5 and later

33. Voice Mail Service (VMS)

34. Voice Mail Notification (VMN)

Note: means supported, X means not supported, - means not applicable.

Note:For IP terminals (including POTS subscribers on iAD devices), the availability

of services listed above are device-dependent. Those supplementary services areavailable to IP terminals in the Switch system if the IP terminals are interoperable withstandard access protocols.

Table 3lists the ANSI standard-compatible supplementary services available to NGN

subscribers. It is applicable to North America market.

Table 3ANSI Standard-Compatible Supplementary Services

No. Supplementary ServiceMGCPTerminal

SIPTerminal

Remarks

1 Speed Dialing

2 Call Forward on Busy (CFB)

3 Call Forward on No Reply (CFNR)

4 Call Forward on Unconditionally (CFU)

5 Call Waiting (CW) GrandStream SIPphone only

6 Caller ID (CID)

7 Call Waiting ID (CWID)

8 Call ID Delivery Blocking-All Call (CIDB-AllCall)

9 Call ID Delivery Blocking-Per Call (CIDB-PerCall)

10 Multiple Numbers with Distinctive Ringing(MNDR)

11 Voice Mail (VM)

12 Voice Mail Notification (VMN)

13 Outgoing Call Barring (OCB)

14 Outgoing Trunk Selection

15 Selective Call Rejection (SCR)

16 Anonymous Call Rejection (ACR)

17 Automatic Callback (AC)


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No. Supplementary ServiceMGCPTerminal

SIPTerminal

Remarks

18 Automatic Recall (AR)

19 Three-Way Calling (TWC)

20 Feature Group D (FG-D)

21 Local Number Portability

22 Toll Free Service (TFS)

23 Service Access Code

24 E911

Note: E911 emergency service is a public security service provided over the emergency

communications network in the United States, which enables related government departments to

precisely locate callers in help, to respond quickly to sudden events, such as accidents, criminal attacks,

disasters, and so on. Being an NGN-enabled solution, the mSwitch system can interface with Intrado

system to enable both real-time location query and DB provisioning for its VoIP subscribers.

Value-added Services

The mSwitch system provides value-added services (VAS) for PHS, V5 POTS and IP

terminals, as listed in the following table:

Table 4 VAS Provided by mSwitch System

No. Value-Added Services PHS

V5 POTSSubscribers oniAN-8000

POTSSubscribersonH.323

IPPhone

& iAD

POTSSubscribes onMGCP IPphone&iAD/iAN-8000

SIP IPPhoneSubscribers

Remarks

1 C-mode service - - X X

2 Short Message Service (SMS) - X X X

3 Missed Call Notification (MCN) - X X XBased on CLIP andSMS

4 Voice Mail Service (VMS) -

5 Location Service (LS) - - X X

6Wireless Private Automatic

Branch Exchange (WPABX) - - - -

A WPABX supportsonly one Centrexgroup, and the groupnumber must be set

as 1.Besides, connectionwith PSTN throughAPI is supported only.

6aBasic call service: intra-groupcalls, calls between internal andexternal lines

- - - -

6b Pick up Service - - - -Provides intra-teampickup and inter-teampickup features.

6c Intercept Service - - - -


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Centrex group subscribers are charged with different tariffs. In addition,

supplementary services and value-added services available to normal mSwitch

subscribers are also available to Centrex subscribers.

IP Centrex service is a subcategory of Centrex service, intended for IP terminal

subscribers. Subscribers in a Centrex Group may belong to one or more callservers (iCS-P). These subscribers form a virtual set, and each has two numbers;

one is a PNP number, used to communicate within the Centrex group; the other

is a long number, used to communicate with outside subscribers.

In the mSwitch system, Centrex service has the following characteristics:

- An iCS-P supports up to 5000 Centrex groups.

- Fully based on the traditional Centrex features, with additional features.

- PHS subscribers and IP terminal subscribers can belong to the same

Centrex group.

- IP Centrex subscribers are charged with different tariffs.

- IP Centrex service is carried over IP network, which greatly reduces the

operating cost.

- Geographically, IP Centrex subscribers can be located at any areas,

minimizing the communication expenses of a company with subsidiaries or

offices at different places.

- Supports operator-initiated operations, such as service registration,

cancellation and traffic management, through PHS and IP terminals.

- Provides auto attendant feature and attendant night service.

- Provides Call Park, Call Hold, Outgoing Trunk Selection, and Forward to

PSTN features.

Missed Call Notification (MCN)

The mSwitch system delivers MCN service for PHS subscribers based on Calling

Line Identification Presentation (CLIP) and short message service (SMS). When

a subscribers phone is powered off or outside the service area, the missed call

records (MCRs) will be stored in the missed call notification center (SLR/MCNC)

and database. When the subscriber is reachable (such as performing registration

at a new location, placing or receiving a call), the MCNC will notify the iPAS

gateway to send to the subscriber an MCR which states the calling number. A

star key * will be added to the calling number to differentiate it from an ordinary

incoming call number. Alternatively, the MCNC notifies the SMS center (SMSC),

to have the SMGW send a MCR message to the subscriber. When signing up for

the MCN service, the subscribers can select whether to receive a missed call

notification based on CLIP or SMS.

The mSwitch system also provides MCN service for inter-domain roaming

subscribers.

Short Message Service (SMS)

mSwitch system provides PHS subscribers with a variety of short message

services, including sending and receiving point-to-point text short messages,

receiving Short Message Peer to Peer (SMPP)-compatible broadcast short

messages (such as weather forecast and stock information), as well as supports


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for other value-added services, such as, SMS-based MCN, E-mail notification,

voice-mail notification, E-bank service and personal financing.

The Short Message Service Center (SMSC) and the Short Message Gateway

(SMGW) provide short message service for mSwitch system. Also, the system

supports storing and forwarding short messages. When a subscriber isunreachable, the short messages will be stored in the SMSC and resent when

the subscriber becomes reachable.

Location service (LS)

Location service is the facility where the system provides a PHS subscribers

location to authorized users. The system delivers two types of location services:

- Location Dependent Service (LDS): It is triggered by a PHS subscriber. LDS

is primarily used to support C-mode Web browser service, for example,

allow a PHS subscriber to know the location of the handset and get local

service (such as ISP service etc)

- Location Tracing Service (LTS): a feature provided to an authorized authority,such as 911, taxi-calling center etc. It enables automatically locating

emergency phones, locating and tracing handsets.

C-mode

The mSwitch system provides PHS subscribers with C-mode wireless data

service, also called P-mail Deluxe Service (PDX).

The C-mode services provided in mSwitch system include E-mail service, E-mail

service with attachment (audio file and video file), Web browsing service, LDS

based Web browsing service (e.g. roaming subscribers are served at the visited

area, but the feature is not supported in this version of mSwitch), and service

subscription. The subscribers can get the required information through thehandset screen.

The C-mode system consists of several servers, such as application server,

registration server, information server, Web server, E-mail gateway, Mail

transmission agent (MTA) server, etc. It connects with gateway in the mSwitch

system through iAG PDX, accepting the access of PHS users. It connects with

SMGW to provide E-mail notification service. It connects with SAM to maintain

the registered subscriber information. It connects with CDR Mediation, a CDR

processing center, to transmit the usage records for the purpose of implementing

C-mode service billing. It connects with Location Server (LS) to support LDS-

based Web browsing service.

Voice mail service (VMS)

The mSwitch system provides voice mail service. To enable the voice mail

service, iCS-P needs to be connected with Voice Mail System (VMS) through SIP

protocol. When a subscriber has applied for the VMS, the mSwitch system will

forward a call to the subscriber to the Voice Mail System (VMS) when the

subscriber is busy, or makes no reply, or unreachable, depending on how it is

configured. At the same time, the VMS will notify the calling party to leave a

message; the subscriber also can call VMS to pick up the message.


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The Short Message Service Center (SMSC) in the mSwitch system supports

SMPP to enable communications with the VMS and implement voice message

notification through short messages.

32 Kbps/64 Kbps PIAFS Wireless Dial-up Service

The mSwitch supports 32 Kbps/64 Kbps wireless dial-up service. The iMG can

interconnect with a third party RAS gateway (i.e. iAG) through SS7 TUP, SS7

ISUP or ISDN PRI protocol interface, to communicate with multiple ISPs. The

mSwitch system can provide high-speed Internet data service to the wireless

PHS subscribers, document the changes in Internet access rates and connection

time, and perform subscriber charging. A PHS subscriber can connect a

computer with the handset and dial a designated access number to access

Internet.

Unified Messaging Service (UMS)

The Unified Messaging Service (UMS) is an integrated information service that

stores and manages at the same location all the data to be exchanged betweensubscribers, such as voice, fax, paging, short message, e-mail and multimedia

data. It allows subscribers to send and receive data through various types of

terminals, including the phone, fax machine, handset, pager, PC, or PDA. This

way, the information service becomes more personalized and intelligent.

Web-Conferencing (CB)

The Web-Conferencing service offers a flexible interactive communication

environment to enable voice and data exchange among remotely separated

subscribers, allowing people at different places (home or office), or working on

different terminal devices (phone or Web browser) to book or attend a phone

conference. It assists a company in enhancing the efficiency and cutting down

travel expenses.

Color Ring Back Tone (CRBT) Service

The Color Ring Back Tone (CRBT) service is a callee-orient service. It allows

CRBT subscribers to set different ring back tones for different caller groups,

different dates, or different time segments in a day, so that callers could receive

different ring back tones when calling to these callees, other than those plain ring

tones commonly used. CRBT subscribers are required to customize each type of

color ring back tones to be used; these tones could be ring tones/music provided

by the system, or audio files CRBT subscribers prepared via IN network system

or downloaded from other network to IN network system.

The CRBT service plays as a contributor to carriers business volume andrevenue by delivering personalized value-added services that are based on

carriers existing network resources.

The CRBT service allows the subscribers to display their individualities; it has a

potential customer basis.

Caller CRBT service

The Caller Color Ring Back Tone (Caller CRBT) service is a new service

developed on the basis of Callee CRBT service. After a user subscribes to the

Caller CRBT service, when waiting for the answer from the called party, the


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service subscriber will hear the color ring back tone defined by the calling party

himself/herself, instead of hearing a beep tone or the color ring back tone

defined by the called party. When the called party hooks off, the ring back tone is

cut and the both parties enter a conversation.

The Caller CRBT service takes full use of the existing network resources of thecarrier and provides a personalized value-added service to the markets. The

purpose is to effectively improve the network traffic of the carrier and increase

the network operation income of the carrier.

Multiple Numbers with Distinctive Ringing (MNDR)

The Multiple Numbers with Distinctive Ringing service allows a service

subscriber to apply for several numbers. No matter which number is called, the

service subscriber can be found. In addition, the service subscriber can define

different ringing tones for the different numbers to distinguish the calling parties.

Usually there are two categories of terminals. One category can support ringing

tones controlled by the call server. The other category only supports ringingtones controlled by the terminals themselves. This service is available only to the

first category of terminals.

Currently, there are the following terminals in the mSwitch network. Their support

for this service is described as follows:

- PHS terminals (the protocol does not support): The terminals play the ringing

tone and cannot support the current service.

- POTS terminals (the protocol supports): The protocol supports the terminals

that are accessed by iAN-8000 to the iCS-P. The iAN-8000 controls the

playing of the ringing tone of these terminals. If the iAN-8000 supports the

control of the ringing tone, the terminals can support the current service. (At

present, the iAN-8000 does not support this service in the cases of V5

access).

- H.248 terminals (the protocol supports): For the terminals that are accessed

by iAD to the iCS-P, the iAD plays the ringing tone of these terminals. If the

iAD supports the control of the ringing tone, the terminals can support the

current service.

- MGCP terminals (the protocol supports): The protocol supports the terminals

that are accessed by iAN-8000 or iAD to the iCS-P. The iAN-8000 or the iAD

controls the playing of the ringing tone of these terminals. If the iAN-8000 or

the iAD supports the control of the ringing tone, the terminals can support

the current service. (At present, the iAN-8000 supports this service in the

cases of MGCP access).

- SIP terminals (the protocol does not support): The terminals play the ringing

tone and cannot support the current service.

- H.323 terminals (the protocol does not support): The terminals play the

ringing tone and cannot support the current service.

Note:The same type of IP terminals might have several models. Different modelshave different functions. Therefore, for the later three types of terminals, if somemodels of them support the ringing tones controlled by the call server, the terminalsof these models can support the current service.


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Intelligent Services

The mSwitch system supports various traditional IN services defined in CS-1 and CS-

2. These services are listed in the table below:

Table 5 IN Services Supported in the mSwitch System

No. IN ServicemSwitchSubscriber

Remarks

1 Free Phone Service ( FPH), 800 number

2 Account Card Calling (ACC) , 300 number

3Virtual Private Network (VPN) Service, 600number

4 Universal Personal Telecommunication ( UPT)

5 Number Portability ( NP)

6 Mass Call (MAS) Service - Currently not available

7 Tele-voting (VOT) Service - Currently not available

8 Wide Area Centrex (WAC) Service -

9 iWAC Service

10 Unique Number (iNumber) Service

11 Prepaid Service The 3.0 version ofmSwitch supports last-minute notification.

12 Q-Box Service

Free Phone Service, 800

Free phone service, also known as 800 service, is a special service associated

with certain callee numbers, usually offered by some large companies for

customers convenience. These companies pay charges involved, to encourage

their customers to call these numbers. Ordinary subscribers can access 800

services within specified regions by dialing 800-preceded numbers.

Accounting Card Calling, 300

In this service, accounting cards, which are provided by operators or distributors

to the ordinary users, are used as a payment method. A cardholder can make a

local or long distance call by inputting the account number and password from

any DTMF telephone, regardless whether this telephone is barred from long

distance dialing or not, and the charge for the call will be debited to the account.Accounting card is classified as prepaid card and postpaid card, and both types

of accounting card support roaming.

VPN Service, 600

In a VPN service, the subscribers form a virtual group which is served over the

existing physical network resources. It enables many dedicated features such as

numbering plan, dial-up mode, routing and accounting plan. The service is

particularly suitable for large companies with subsidiaries and branches in

different geographical areas.


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NP Service

The Number Portability (NP) Service is designed to offer a solution to frequent

phone move due to the frequent move of subscribers (companies or individuals).

It enables the portability of phone numbers within a local network scope through

a unified IN platform, allowing subscribers to keep their phone numbers aftermoving to new locations. In other words, it makes a number permanent to a

subscriber.

UPT Service

The Universal Personal Telecommunication (UPT) Service is a portability-

oriented service, which allows subscribers to use a unique personal number.

With this personal number, subscribers can place and receive calls in one

network or across several networks. UPT can incorporate multiple

telecommunication devices, such as mobile phone, home phone, office phone,

voice mailbox, etc., and allows subscribers to define the way the UPT service is

implemented through the CSS system or IVR system. The communication

number of a subscriber is translated to a corresponding number, and the

incoming calls to the number are routed as predefined. Calls are not restricted by

geographical locations, but may be restricted by the network capacity or by

terminal capacity.

UPT subscribers are characterized by the charging methods for outgoing calls

and incoming calls/management service. UPT account billing and usage

limitation method could involve both outgoing calls and incoming calls. If a

subscriber applies for account billing, all the outgoing calls and incoming

calls/management service will be debited to the account; if the subscriber applies

for monthly usage limitation or daily usage limitation, this limitation could apply to

both outgoing calls and incoming calls, or only to outgoing calls. If the limitation is

set to apply to both outgoing calls and incoming calls, it must be checked beforeeach outgoing or incoming call/management service.

VOT Service

The VOT service is designed mainly for companies or organizations to conduct a

public survey or public opinion poll. A company or an organization requests from

the service provider (or carrier) for one or more phone numbers. The end users

can dial these numbers on any DTMF phone and register their votes. The system

records the number of calls and sends the data to the user.

VOT service can be categorized into the following types:

- Simple VOT: a simple VOT service, in which each number represents an

opinion; to vote for the opinion, end users only need to call the number, and

every call to the number is automatically recorded by the system as a vote

supporting the opinion.

- Simple VOT with Reward: a simple VOT service with reward, in which each

number represents an opinion; to vote for the opinion, end users only need

to call the number, and every call to the number is automatically recorded by

the system as a vote supporting the opinion. In addition, the system will pick

a call as the reward winner and forward the call to a specific number

according to configured rules (for example, according to the sequence

number of the call, or the time when the call is placed).


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- Multi-Choice VOT: in this service, each number represents a project, not an

opinion; the end users cast votes or participate in a reward according to the

voice prompt.

MAS Service

The MAS service is similar to a hot line, but it is capable of dealing with shorttime traffic peak. The MAS user requests a service number from the carrier and

makes it known to the public. The system makes responses to calls from the end

users in two ways: diverting the calls to a hot line, or playing a voice

announcement to instruct the callers to perform keyboard operations.

Wide Area Centrex (WAC) Service

The ordinary Centrex service can be implemented only in a group of subscribers

using access devices of the same type. For example, subscribers in a Centrex

could be those under iUMG, or under iCS-P, however, subscribers under iUMG

and those under iCS-P cannot be in the same Centrex. WAC Service suffers no

such a limitation; it can resort to IN architecture and the VPN service in this

intelligent network to group Centrex subscribers and other individual subscribers

distributed in different switching devices (iCS-P, iUMG, access equipment in

PSTN or third party networks) into a virtual network, so that related services can

be delivered. Calls among WAC subscribers within the same switching device

(that is, within the same Centrex) are processed within the Centrex and charged

according to the billing method implemented in the Centrex; calls among

individual subscribers and between different switching devices are processed

through IN SSP and SCP and charged according to the billing method

implemented in VPN.

It could be said that WAC Centrex service is a combination of ordinary Centrex

service with VPN service.

iWAC Service

The iWAC service is a supplement to the Centrex service provided by

UTStarcom. The iWAC service interconnects the Centrex/PBX groups across

several areas by using the mSwitch softswitching system to build a larger virtual

private network, and based on it, to provide the various Centrex services for end

users. In the whole network, the users can dial to each other by using Private

Numbering Plan (PNP) numbers. Compared with the Centrex service, the iWAC

service has a coverage area of several cities. This enlarges the usage of mutual

dialing based on PNP numbers and benefits the internal communication inside

the corporations across several areas.

An iWAC group might include the following types of users:

- mSwitch Centrex users: These include PHS subscribers, SIP terminals,

H.323 terminals, H.248 terminals, MGCP terminals, iAD-accessed POTS

terminals, MGCP iAN-8000 subscribers, and V5 iAN-8000 POTS

subscribers that belong to the mSwitch system. These users must have

been added in a Centrex group before they are added to the iWAC group.

- mSwitch PBX users: These include PRI/R2-accessed PBX users that belong

to the mSwitch system.


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- PSTN Centrex users: These include ISUP-based, ordinary PSTN/PLMN

subscribers. These subscribers must first form a Centrex group on the

carrier side and own the iWAC service attribute.

- PSTN PBX users: These include PBX users under the control of PSTN

exchanges.For the internal subscribers in the mSwitch system, to reduce network overhead,

usually the mSwitch subscribers in different areas first form different Centrex

groups, and then the Centrex groups in the different areas are added in the

iWAC group. In this way, calls within a Centrex group can be processed by the

local call server; only those beyond the Centrex group need to be routed to the

upper layer service platform for further processing, hence the signaling traffic in

the network reduces.

In addition, the iWAC group covers the PRI/R2-accessed PBX users in the

mSwitch system and the PSTN Centrex users or PBX users interconnected by a

C4 office. Calls between the mSwitch Centrex users and these users all need to

be routed to the upper layer service platform for further processing.

The users in the iWAC group use a unified PNP. The PNP prefix cannot be the

same as those for special services or the prefix for outward dialing. With this

service, the wireless users and wired users in the same group can dial to each

other by using PNP numbers, add the outward dialing prefix when calling the

subscribers outside the group, enjoy a lower tariff, and have the other Centrex

features.

iNumber Service

The iNumber is the short for Unique Number, a service that allows subscribers

to use a unique number to access a network, and to cross multiple networks, or

simply speaking, binds a service number with multiple terminals.

The iNumber service can be flexibly implemented in networking environments

involving multiple types of networks. Deployment of iNumber service leverages

carriers existing network resources, and facilitates personalized VAS delivery,

allowing carriers to achieve increased volume of service sale and increased

revenue.

The iNumber is a callee-intended VAS. Its basic function is to correlate all the

communication numbers a subscriber owns with one specified number, so as to

achieve the ever-accessibility to the subscriber when as a callee.

There are typically two types of logic governing how the master number and

correlated numbers will ring when iNumber service is triggered: Group Huntingand Group Ringing.

The iNumber service supports prepaid subscribers; it also supports monthly rent

and CDR-based billing, as well as the combination of these two methods.

The CDRs for iNumber service are explicitly marked to tell the CDRs generated

for iNumber services from other types of CDRs; and each of them contains the

master number and the number answering the call.

Prepaid Service


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Prepaid services provided by mSwitch system include various functions, such as

opening accounts for prepaid subscribers, recharging, querying the current

balance of a prepaid subscriber, querying the usage detail of prepaid subscribers,

setting callee discount numbers for a prepaid subscriber, querying existing callee

discount numbers of a prepaid subscriber, balance notification, and so on.

SLR/RS, PSC, iCS-P, SAM (Subscriber Application Management), and OBS

(Online Billing System) should be configured to support this service. More

detailed discussions are given below.

b The operator should work on a SAM system to create subscribers accounts

to enable prepaid billing.

c The operator should configure relevant parameters through OBS, including

service plan, price plan, domain information (such as country, province/state,

area), discount package, tariff plan, day/time discount, and usage credit,

settings related to callee discount (such as the number of callee discount

numbers allowed for a subscriber, discount rate, lock period, and so on).

d When processing a call from a prepaid subscriber, the iCS-P gets the calling

partys profile from the SLR to judge whether the caller is a prepaid

subscriber or not. If the caller is a prepaid subscriber, the iCS-P will ask the

PSC (Prepaid Service Center) to calculate maximum allowed calling time.

The PSC is in charge of processing prepaid service; it will calculate the

maximum allowed calling time according to the balance of the prepaid

account and the OBS configuration info mentioned above, and then send the

result to the iCS-P. If the actual calling time reaches the maximum allowed

calling time, the iCS-P will disconnect the call.

e After the call is over, the iCS-P will send CDR for this call to PSC

immediately. PSC will charge this call according to calling time and the OBS

configuration information, and debits the balance of this prepaid subscriberwith the charge for the call.

The mSwitch system is equipped with an interactive voice response system (IVR-

1000), which allows subscribers to complete various self-assistant operations,

such as depositing, querying balance, setting callee discount numbers; and could

be used to implement balance notification/payment collection.

Note:The implementation of balance-notification/payment-collection involves setting

operations on OBS management GUI, a background program (balancenotify), an API(IVR_Agent) and IVR-1000. The parameters related to balance-notification/payment-collection have to be configured on the OBS management GUI; the background

program monitors subscribers deposit status on real-time basis, checking if thedeposit status of a subscriber meets the settings made on OBS GUI (for example, thebalance is below certain preset level); the IVR_Agent interfaces with the IVR-1000,sending subscribers information to the IVR system; the IVR system issue notices tosubscribers accordingly.

These self-assistant operations, for example, balance inquiry and familiarity

number setting, can be performed by an operator on an OBS console, or

completed through a customer self-service system (CSS).

Multi-Service Interface Protocol (MSIP), an UTStarcom private protocol, is used

for service switching and data switching between the mSwitch OSS and IVR-


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1000 system. The MSIP uses TCP/IP or UDP as transmission layer protocol to

ensure reliable transmission. In mSwitch 2.5 or above, the MSIP is used as the

interface protocol between IVR-1000 and OBS/SAM, and also as the standard

communication protocol between mSwitch system and third party systems, such

as China Telecoms 97-system, third party IVR system, and third party

accounting systems, and bank systems, to implement prepaid services in third

party systems.

Q-Box service

The Q-Box service is a new service based on the POTS + PHS Home Station

concept, which is substantiated as a Q-Box terminal, a CPE that delivers home-

coverage mobility for PHS while inherit the advantages of traditional POTS in

terms of voice quality and widely covered line infrastructure.

The Q-Box service employs iCS-P as its call server to enable necessary call

control functions.

The Q-Box service mainly features:- A Q-Box terminal is integrated with functionality of POTS phone; hence it

can be used as an ordinary POT phone.

- A Q-Box terminal can work as a home-coverage RF station, allowing PHS

handsets under Q-Box coverage to access call service through PSTN while

service charges are still on the accounts of these PHS subscribers. If a PHS

handset is a permanent user of the Q-Box and makes calls through the Q-

Box, the calls are charged to the PSTN number.

- A PHS handset goes freely and seamlessly between public wireless network

and Q-Box signal coverage, enjoying two-mode featured service.

Roaming Services

The mSwitch system provides inter-domain PHS roaming services, including:

Semi-auto roaming service

Typically, an mSwitch subscriber when roaming to another domain can make

emergency calls only. The semi-auto roaming service allows the subscriber to

enable the roaming service in the visited domain and make any calls, or disable

the roaming service and make emergency calls only. When the subscriber

returns to the home mSwitch domain, the semi-auto roaming service is disabled

automatically.

Roaming service within an mSwitch domain, including:

- Roaming between iCS-Ps

- Roaming between CSCs/RPCs under an iCS-P

Roaming service between different mSwitch domains

Roaming service between an mSwitch domain and the third party PHS domain

Under the control of iCS-P, the mSwitch system provides the following handover

service for PHS subscribers:

mSwitch intra-domain handover, including

- Handover between iCS-Ps


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- Handover between ASs under the same iCS-P

- Handover within an AS

mSwitch inter-domain handover

Handover service between an mSwitch domain and a third-party PHS domain

Note:The following limitations apply to mSwitch intra-domain handover:

(1) A call will be released if a handover takes place during the call ringing on thecalled party.

(2) The iCS-P supports a handover when the calling party or the called party is on anormal conversation.

Whether a handover is allowed when the calling party is listening to the ringback toneor an announcement depends on the setting of the Originating Connect Occasionparameter. On the iCS-P Configuration Management window, click [All \ IUA Related \PHS \ PHS Service General Information] and select a value option for the OriginatingConnect Occasion parameter. To reject a handover on the calling party, select the

Called Party Answered option. To allow a handover on the calling party, select one ofother options.

(3) For services involving multiple parties such as calling waiting, three-party calling,conference call and call forwarding, the iCS-P does not support a handover betweendifferent ASs or different iCS-Ps, if one party is held on the call.

For example, if subscriber A is on a call with subscriber B, while subscriber C is heldon the call, the call will be handled in the following ways:

-- The call continues if a handover takes place on the subscriber B or on thesubscriber C.

-- The call is released if a handover takes place on the subscriber A.

NGN Applications

The mSwitch system supports the following service categories:

Basic C4/C5 service

Multiple signaling protocols

Routing and digit analysis

Supplementary services

IP Centrex / Host IP Centrex service (applicable to UTSmart terminals)

Value Added Services and intelligent services

Fixed-Mobile Convergence solution

mBOSS

Operation and maintenance

Regulatory service

System redundancy and reliability

Basic C4/C5 Service

Basic voice service


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Carrier selection

Region-specific announcement, tone and dialing plan

Multi-area code support

Emergency call

Battery reversal

Fax (T.38/G.711 VBD mode)

64 kbps data service

ISDN PRI PBX access

R2 PBX access

NDD/IDD blocking for PBX access

ISDN BRI subscriber

System level blacklist/whitelist

ANI screening

Forced call release for certain destination

Long time duration call

Support 100 digit Map entry configuration

Codec: G.711 A-law/G.711 G-Law /G.723.1/G.726/G.728/G.729A/EVRC

Echo Cancellation / Comfort Noise Generation / VAD

Physical interfaces: E1, T1, STM-1 and OC-3

Multiple Signaling Protocols

The mSwitch5.6 system supports the following signaling protocols:

ITU-T/ANSI MTP/ISUP/TUP (with country variants)

SS7 ISUP variants (ITU-T Q.764, Q.767, ITU-T 97 version, ANSI ISUP)

SS7 MTP/TUP

ITU-T SCCP/CAP/CAMEL/INAP (CS1&CS2)

GSM MAP

IS-41

SIGTRAN SCTP/M2UA/M3UA/M2PA/IUA

R2 Signaling (ITU-T)

PRI Support ITU-T Q.921/ITU-T Q.931/5ESS PRI/Nortel DMS100 PRI Variants)

V5.2

SIP (RFC3261)

SIP-T/SIP-I (Q.1912.5)

H.323

The mSwitch R5.6 supports the following media protocol:

H.248/MGCP


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Feature:

A-Link and F-Link support

64 kbps E1/56 kbps T1 signaling link, 2 M high speed link support

SS7 COT reception (ITU-T/ANSI)

Cyclic Redundancy Checking (CRC)

Multi-point code support

ISUP/SCCP screening

SIP offer/answer mode for the dynamic codec negotiation (RFC3264)

Q. 50 DCME support

RFC2833

T.38 FAX

Routing and Digit AnalysisThe mSwitch system provides flexible routing mechanism:

Alternative routing

Proportional routing

Overflow routing

Priority based routing

Automatic re-routing

Routing based on source and destination

Re-routing based on congestion conditions

Routing based on calling party category

Scheduled routing

The mSwitch system provides power digit analysis and digit translation function:

Digit analysis

Number translation

Number pre-analysis

HEX (A, , D, #) digit analysis

Invalid caller party number analysis

Calling Party Category (CPC) modification

Supplementary Services Abbreviate

mswitch r6.0 overview e sz v1.0 (1)

Documents