06-28-2017 08:54 AM - edited 03-17-2019 10:40 AM
Hi All,
I am running into a Design problem, let me explain the call flow.
IP-PHONE A SCCP ---> CUCM A --> SBC --> CVP --> SBC --> CUCM B --> IP Phone B SCCP (these are 2 calls legs from the CVP perspective).
when CUCM A calls Main DID from CUCM B, CVP takes place in the call by orchestrating "REFERS" and auto attendants stuff, after the initial dialog an IP Phone from CUCM B answers the call.
When the CUCM B phone, puts me on hold, it send to CVP an SDP with MMOH IP address of that cluster B and CVP sends me back to CUCM A the SDP as is with c=MMOH 239.x.x.x and a=X-cisco-media:mmoh+ConnSendOnly via a SIP Trunk.
Obviously CUCM A does not know what to do with that multicast IP address, we don't enable multicast crossing enterprise DataCanters, hence there is no Music on Hold from CUCM A. and these are 2 different sites geographically far away from eachother.
The point here is that CUCM A is ALL configured to be unicast, in this case is does not apply, I believe.
My Question is, do you know how can I convert that incoming DSP from the CVP (at this point SBCs are OUT of the picture). into something I can tell CUCM A IP Phone "Hey please listen to your unicast".
The 239.X.X.X IP address we spoof that so we can play alternate MOH from the router locally, that works OK.
Thank you for your time,!
Have a nice day.
Juan.
06-28-2017 09:28 AM
If phone B puts you on hold, then the MOH settings of CUCM A are completely irrelevant.
The one who chooses what you will hear, and whether it will be unicast or multicast, is CUCM B.
There is no way to have CUCM A change that multicast into unicast, if CUCM B is configured to provide you with multicast MOH.
You'd need to change the CUCM B configuration to unicast. If you're asking if there is a way to instruct phone A to listen to the MOH from CUCM A, that's also not going to work. The one calling the shots as to what you hear, and unicast Vs. multicast, is CUCM B.
06-28-2017 06:32 PM
Thanks Jaime,
This change in the Design will be challenging. (for the enterprise).
Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community: