No Ringback Issue (using SIP trunk)

rickyhadlocon · ‎01-07-2010

Hello,

May I ask for your help? I am having a "No Ringback" issue with my system. The call flow is PSTN -> Voice Gateway -> CM 5.1 -> SIP Trunk -> SIP Device.

I already have "progress_ind setup enable 3" command in my voip dial-peers but there's still no ringback.

Thank you.

Jeffrey Knuckle · ‎01-08-2010

Post the config of your router... also, is the 'SIP Device' a SIP endpoint phone?

rickyhadlocon · ‎02-10-2010

Thank you. The SIP trunk in CUCM is connected to Microsoft OCS R2 Mediation Server. So, The call flow is PSTN -> Voice Gateway (H.323) -> CM 5.1 -> SIP Trunk -> Mediation Server -> Office Communicator Client.

gaudinoluigi · ‎02-10-2010

Try this command on the dial-peer with problem :

progress_ind alert strip 2

Bye

rickyhadlocon · ‎02-10-2010

Thank you. However, "progress_ind alert" command is not available in my dial-peer. I am using a voip dial-peer pointing to my CUCM servers.

My CUCM server is using version 5.1.3.4109-1 while my 3845 voice gateway is using c3845-ipvoicek9-mz.124-23.bin.

Casey Dockry · ‎01-24-2011

Were you able to find a fix for this issue? We are experiencing the same problem.

Thank you,

Casey

Daniele Giordano · ‎01-25-2011

Is your gateway controlled by CM via mgcp?
Post the config and the output of "debug voice ccapi inout" during problematic call.

Regards.