When I place a call from ucme to ucm through a gk, I get a busy tone and I receive an ARJ on the cucm trunk side.
My initial outbound voip dp hqs no codec configured (default is g729r8).
I configured GK CAC to get 96 kbits (6 x g729 calls) over the WAN.
If I remove bandwidth command in GK, call is ok. If I configured bandwidth to 128, call is ok. 127 is not ok. So, I suppose GK sees my call has a g711 call on the cucm trunk side.
Any idea ? An IOS issue with 12.4(15T)?
I also put the codec in hard in the initial outbound dp.