Cisco Cisco Expressway
Introduction
Objectives and intended audience
This deployment guide describes how to configure a Cisco Expressway (Expressway) using the Back-2-
Back-User-Agent (B2BUA) and Microsoft Lync 2010 / 2013 (Lync) to interwork.
Back-User-Agent (B2BUA) and Microsoft Lync 2010 / 2013 (Lync) to interwork.
It also highlights the capabilities and limitations of interoperation of Expressway and Lync.
Deployment scenario
A company is introducing a Lync environment into their network and is installing Microsoft Lync clients to
provide messaging and presence capabilities for all staff. Integrating this with their existing video network,
which handles their video conferencing, provides the ability for video endpoints to make calls to and receive
calls from Lync clients.
provide messaging and presence capabilities for all staff. Integrating this with their existing video network,
which handles their video conferencing, provides the ability for video endpoints to make calls to and receive
calls from Lync clients.
This deployment guide uses the example environment depicted below:
This guide describes how to configure:
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static routes to route calls from Lync to a "Lync gateway" Expressway
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the Expressway B2BUA to route calls to Lync
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a SIP trunk between the "Lync gateway" Expressway and Unified CM
Microsoft Lync and Cisco Expressway Deployment Guide (X8.5)
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Introduction