I have problem about call transfering.
In the side A,I have a Call Manager 18.104.22.1680-3 with a Voice Gateway (c2821).
In the side B, I have a sample Voice gateway that use an FXS (c1751v).
For the communication, There is a SIP trunk between The CCM6 and the c2821.
There is a h323 trunk between the c2821 and the 1751.
I can call from the CCM (using an IPPhone) to the 1751v'phone.
I cann call too from the 1751v to the CCM.
So the schema is :
IPPhone(dn:4001) <-> CCM <- SIP trunk -> c2821 (Edge Router) <- H323 (like internet)-> c17V1 <- FXS -> Phone(dn:3001).
In the Call Manager, I cannot transfer the call.
e.g : ther is another ipphone in the call manager : dn 4002.
When the call from 3001 arrives in the 4001, I want to transfer it to 4002.
In the CCM, I transfer the call : push button "trnsfr",compose the 4002 and push transfer button.
The line can be transfered but there is no sound.
And after 10 seconds of "no sound", the call is hanged up.
What is the cause?
Is there any issue?
The link is fully Cisco.