When Video Endpoint attempts to ‘adhoc’ a third endpoint into a conference they loose Video. Having a look at the HW resources they were definitely configured and also showing registered to CUCM. Upon investigating the logs there seems to be a authentication issue when the resource is invoked.
00751162.000 |12:35:43.071 |SdlSig |HttpHandlerRes |restart0 |SipMcuControl(1,100,36,2) |HttpHandler(1,100,39,2) |1,100,39,2.583^*^* |[R:N-H:0,N:0,L:0,V:0,Z:0,D:0] CI=100 Branch= 0 Pkid= Type=0 ResponseCode=0
00751162.001 |12:35:43.071 |AppInfo |SipMcuControl::checkForSuccess- 14
00751162.002 |12:35:43.071 |AppInfo |SipMcuControl::checkForSuccess- Authentication failure
00751162.003 |12:35:43.071 |AppInfo |SipMcuControl::restart0_HttpHandlerRes- found Query transaction for Id 100
This is odd. The Media resource is registered to the CUCM so one can be forgiven for assuming there is no issue with the conference resource. I entered the wrong credentials completely to be sure and reset the CFB and it still registered. Entered the right credentials, made a call and it was successful,
Looks like a bug on CUCM 11.5.1.