Cisco Cisco Expressway
Appendix 6: Media paths and license usage for
calls through B2BUA
calls through B2BUA
Lync client call to SIP video endpoint
For a call of this type:
n
Signaling flows through Lync, B2BUA, and Unified CM.
n
Media is connected directly between the Lync client and the B2BUA.
n
Media is connected directly between the internal video endpoint and the B2BUA (as the call is SIP to SIP).
n
Calls made in the opposite direction, internal video endpoint to Lync client use the same signaling and
media paths.
media paths.
n
Licenses:
l
1 rich media session license on “Lync gateway” Expressway
Signaling
Media
Microsoft Lync and Cisco Expressway Deployment Guide (X8.2)
Page 63 of 67
Appendix 6: Media paths and license usage for calls through B2BUA