introduction to ims (ims-01) ip media servers in ims: mrf and mrfp garland sharratt
DESCRIPTION
Carrier Class IP Media Servers. CMS-1000 Media Server. Introduction to IMS (IMS-01) IP Media Servers in IMS: MRF and MRFP Garland Sharratt VP Partner Development & Chief Architect [email protected]. CMS-6000 Media Server. Services – Traditional Approach. MSC (announcements). - PowerPoint PPT PresentationTRANSCRIPT
Introduction to IMS (IMS-01)
IP Media Servers in IMS: MRF and MRFP
Garland SharrattVP Partner Development
& Chief [email protected]
Carrier Class IP Media Servers
CMS-1000 Media Server
CMS-6000 Media Server
Legacy TDM Network
Services – Traditional Approach
Services typically tied to access network Each new service required the provisioning of new hardware and
software Hardware and software was sold as a “service node” by one vendor,
typically a proprietary solution deployed as a silo Service node approach was necessary in 90's but in retrospect
resulted in lots of infrastructure duplication and associated capex/opex cost
ProprietaryProprietary
SUN Card + DSP Cards
+ TDM Interface CardsEmbedded in a
Compact PCIChassis
Proprietary, MonolithicSystem with software and Media processing
hardware
SUN Workstation withPCI DSP and TDM boards
Proprietary Audio Bridge
Conferencing Software
NT Server+ ASR Software
+ PCI DSP +TDM Boards
OS2 Based PC
TDM and DSP Boards in VME
Chassis
Conferencing Service Node
VoicemailService Node
MSC (announcements)
Mobility (Find Me)Services Node
Prepaid/RechargeService Node
Speech PortalService Node
Services – Decomposed Approach
Services are introduced and delivered through a software defined network
Service composed from best of breed software and media processing hardware
Open standards interfaces Service logic executes on
off-the-shelf servers Media processing hardware
is shared by many services
Conferencing Software
Messaging Software
Class 5 SoftswitchSoftware
MobilitySoftware
Prepaid/RechargeSoftware
Speech PortalSoftware
Media Gateway
IP/MPLSBackbone
IP Media Server
Legacy TDM Networks
Sessioncontrol
Comm
on Infrastructure
Transport Layer - IP/MPLS(routing/switching)
Traffic Processing Layer (inspect, process, adapt, convert,…)
MediaGateway
Session BorderController Media Server
Signaling LayerBasic voice services
Enhanced multimedia services
layer(mobile) Voice
Softswitch
Voicemail IP CentrexIP PBXCall Center
Conferencing
Collaboration Ringback
Videomail
Calling Card Push to TalkSpeech Portal
Hosted ServicesNetwork Gaming
Application Server
Layered Architecture for Services
Application
Servers
Legacy Wireless(PLMN,
2G/2.5G)
IP Wireless(3G, WiFi, WiMax)
Cont
rol
Lay
erTr
ansp
ort
&En
dpoi
nt L
ayer
Legacy Wireline(PSTN)
IP Wireline(DSL,Cable
)
Serv
ices
Lay
erSCIM
MGCF
HSS
ASASAS
RNC
Call StateControl Function
Mp (SIP, NETANN, VoiceXML, MSML)
Internet/IntranetGGSN
Mb (RTP)
IP Multimedia Subsystem
Mb (RTP)
MGW MRFP
Mb (RTP)
SGSN
Multimedia Resource Function
Controller
MediaGateway
Media GatewayControl
Function
Home Subscriber Service
Multimedia Resource
Function Processor
Mb (RTP)
IMS Architecture - Media Processing
CSCFMRFC
Multimedia
Resource Function
Service Building Blocks
S-CSCF
AS
MRB
MRF/MRFP
SIP
SIP
SIP/H.248
Multimedia Resource Function (Processor)
SIP
Application Server
Media Resource Broker
Service Specific Logic
Service Managementand Provisioning
Call Signaling
Service Databases
Billing Interface
Service Creation
Audio Tones & Announcements
DTMF Detection& Generation
Audio Bridging& Mixing
Audio Recording & Playback
SpeechRecognition Text to Speech
VideoAnnouncements
Video Bridging& mixing
Video Recording & Playback
Fax Detection& Processing
Hot WordSpotting
Video Switching
MRF selection/virtualization
SIP
RTP
Video Transcoding
AudioTranscoding
Video EnhancedProcessing Codecs
Media Processing Chain
S-CSCF
AS
MRFC
MRFP
SIP
SIP
SIP
SIP UAProtocol conversion(Call Detail Records)
Media processing
H.248
MRB MRF selection/virtualization
SIP
Service logic, signaling
MRF
Media Server Control Protocols
S-CSCF/"Softswitch"
AS
MRFC
MRFP
SIP
SIP
SIP
SIP UAProtocol conversion(Call Detail Records)
Media processing
H.248
MRB MRF selection/virtualization
Service logic, signaling
SIP
• Simple processing,e.g., PSTN Emulation
• "Mobile softswitch" use
SIP + Netann + XML (e.g., MSML/MOML)
MRF
• Complex processing,e.g., enhanced services
• Application server use• "Mobile softswitch" use
Summary
IMS is decomposed into functional components, IP media server is a key reusable IMS component Media servers offer building blocks Two media server control options
MRFP -- H.248 interface• Simple processing
MRF -- SIP interface• Enhanced processing