Cisco Cisco TelePresence Video Communication Server Expressway
Appendix 11 – Media paths and license usage for calls through B2BUA
Cisco VCS Deployment Guide: Microsoft OCS 2007 R2, Lync 2010 and Cisco VCS X7.0
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MOC/Lync client call to a SIP video endpoint via AM
gateway
gateway
For a call of this type:
Signaling flows through OCS/Lync, B2BUA, AM GW and VCS Control. Optimal call routing may
allow the call signaling not go through the “OCS/Lync gateway” VCS after the initial search (see
VCS Administrator Guide for more details).
allow the call signaling not go through the “OCS/Lync gateway” VCS after the initial search (see
VCS Administrator Guide for more details).
Media is connected directly between the Lync client and the B2BUA.
Media is connected directly between the internal video endpoint and the B2BUA (as the call is SIP
to SIP), and then flows to the AM GW and back to the B2BUA.
to SIP), and then flows to the AM GW and back to the B2BUA.
Calls made in the opposite direction, internal video endpoint to MOC/Lync client will use the same
signaling and media paths.
signaling and media paths.
Licenses:
•
•
1 non-traversal call license on VCS Control
•
1 or 0 non-traversal call licenses on “OCS/Lync gateway” VCS
signaling
media