Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

New Member

CUBE Midcall Codec Change

Dear All,

I am running 12.4(15)XW and have a lab configuration like this:-

CUCMA <--> SIP <--> CUBE <--> SIP <--> CUCMB

CUCMB is representing a SIP SP.

When I place a G729 call from CUCMA to CUCMB this works fine as does a G711 call. However If I start a G711 call from CUCMA to CUCMB and then from CUCMA try to transfer this to a G729 phone on CUCMA the transfer will fail.

Is this because the CUBE cannot accept a midcall codec change?

TIA.

1 REPLY
Silver

Re: CUBE Midcall Codec Change

Once a call is established with audio via CUCM, CUCM does not support any endpoint trying to switch audio codec without initiating signal to pause the rtp transmission first. For example, if an SIP endpoint wants to change the current G729 session to G711 by an INVITE signal (SendReceive), CUCM does not guarantee the call can be switched accordingly.

Refer to the bug: CSCdu07720

272
Views
0
Helpful
1
Replies