Microsoft® Lync™

SIP Trunking with Lync

Agenda

▪ What is SIP Trunking?▪ SIP Trunking Benefits▪ SIP Trunking Deployment Scenarios with Lync ▪ Qualified SIP Trunking Partners

SIP Trunking Overview▪ SIP Trunking enables an enterprise to communicate with internal and external

users over IP, including calls to traditional PSTN networks.▪ Utilizing the SIP protocol provides a platform for future delivery of other real time

communication modalities.

SBC

Lync Server Central Site

Lync Endpoints

Lync Servers

Service Provider Core

Network

Service Provider Core

Network

Service Provider

MPLS Network

Service Provider

MPLS Network Customer

DMZ

SIP Trunk

SIP Trunking Enables-

Aggregation of Trunks ▪ Combine all voice trunks from many office sites into a few data centers▪ Track and Manage usage using ‘Usage’ portal▪ Quickly add capacity and services on demand (ex. Conferencing)

Aggregation of Access ▪ Reduced number of facilities required▪ No fixed capacity or location requirements▪ Less HW to purchase, maintain, and operate▪ Simpler Integration point to existing IP PBX’s

On-Net Calling▪ Make free calls with users in the same service provider network

SIP Trunking Benefits

SIP Trunking Deployment with Lync

Support▪SIP Forum Website: End-to-End (E2E) support responsibility between Microsoft (MSFT), Service Provider (SP), and Customer are defined by deployment scenario

SBCs (Session Border Controllers)▪SIP Trunking deployment model supports SBC’s at the SP core network or on Premise

E2E Support: Premise Router

▪ Service Provider(SP)/Microsoft (MSFT) provide end to end solution support via UCOIP.▪ Mediation Server and core network SBC interoperate via SIP-TCP/UDP and RTP (G.711).▪ Premise router can transcode G.711 to another codec (ie. G.729) if needed.▪ Lync Server provides network edge access to Lync clients and Lync Server federated networks.

SBC

Lync Server Central Site

Lync Endpoints

Lync Servers

Service Provider Core

Network

Service Provider Core

Network

Service Provider

MPLS Network

Service Provider

MPLS Network Customer

DMZ

Router

MediationServer

Lync Edge Servers

Lync FederatedNetwork

Lync endpoints

SP/MSFT Supported Components

TCP/UDP TCP

E2E Support: Premise SBC

▪ SP/MSFT provide E2E solution support via validated MSFT UCOIP Program.▪ Premise based SBC provides access to the Service Provider “core” network.▪ Mediation Server and the customer premise SBC interoperate via SIP-TCP and RTP

(G.711).▪ Lync Server provides network edge access to Lync clients and Lync Server federated

networks.

SBC

Lync Server Central Site

Lync Endpoints

Lync Servers

Service Provider Core

Network

Service Provider Core

Network

Service Provider

MPLS Network

Service Provider

MPLS Network

CustomerDMZ

Premise SBC Mediation Server

Lync Edge Servers

Lync FederatedNetwork

Lync endpoints

SP/MSFT Supported Components

TCP/UDP TCP

3rd party

IP-PBX

3rd party

IP-PBX

Qualified SIP Trunking Partners

Vendor Service CoverageAT&T US BT Global Services EuropeColt EMEA

Global CrossingUS, Latin America, W. Europe,

SingaporeIntelePeer USInteroute Western EuropeLevel 3 US MyNetFone Australia Orange Business Services Western EuropeSpeakup NetherlandSprint US Swisscom SwitzerlandTDC Norway Telenor Norway ThinkTel CanadaVerizon US, Western Europe