I have configured my zones, dial plan transforms and search rules as according to the documentation for X7.2.2.
I have configured a SIP trunk from the CUCM to the VCS-C address
I can successfully call from a CUCM device to a telepresence end point and establish a SIP video connection. When I attempt to call the CUCM from the TelePresence end point it doesn't connect. Within the VCS-C call history logs i have the following entry:
Protocol: SIP <-> SIP
Status: 416 Unsupported URI Scheme
Peer: This System
under the view detail button it states:
Connection failed, disconnect reason 416 Unsupported URI Scheme
the only thing that looks odd (to me) is it is using Src-port="5061" Protocol="TLS" but the Auth="NO"
Does the CUCM require the Auth to be enabled or is this something else?
Do you have any pipes created on VCS? I would suggest you remove the Pipes from the DefaultSZtoCUCMZone Links and see what happens. (This is just the basic recommendation, you might have other zones in play)
IntroductionCUCM Routing RulesDial String implementation PolicyCUCM Routing LogicSIP URI Call Routing Analysis+++ Case Study: 1 ++++++ Case Study: 2 +++Conclusion
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