Cisco Cisco Expressway
Preface
Change History
Date
Change
Reason
June 2016
Updated for X8.8.
X8.8 release
November 2015
New template applied. Version numbers updated. Republished for X8.7.
X8.7 release
July 2015
Updated for X8.6.
April 2015
Updated for X8.5.2. Link to new IP address dialing article.
December 2014
Updated for X8.5. IP address dialing information modified.
June 2014
Republished for X8.2.
December 2013
Initial release.
Table 1 Deployment Guide Change History
Introduction
This deployment guide provides guidelines on how to configure the Cisco Expressway (Expressway) version X8.8 and
Cisco Unified Communications Manager (Unified CM) versions 8.6.x and later to interwork via a SIP trunk.
Cisco Unified Communications Manager (Unified CM) versions 8.6.x and later to interwork via a SIP trunk.
Deployment Scenario
A company already has Unified CM running their telephone/video system. They want to integrate this via a SIP trunk
to an Expressway-C to provide further services such as integration with Jabber Guest servers or another Expressway
managing integration to Microsoft Lync.
to an Expressway-C to provide further services such as integration with Jabber Guest servers or another Expressway
managing integration to Microsoft Lync.
For the purposes of this example, the existing Unified CM system uses telephone (digit-only) numbers to specify who
to call:
to call:
■
Endpoints connected to the Unified CM are identified by 3xxx extension numbers.
■
Endpoints and systems that are contacted via the Expressway-C are identified by 4xxx extension numbers.
5
Cisco Expressway SIP Trunk to Unified CM Deployment Guide
Preface