I updated a customer to R 11.0.0.1.0 build 8 and came across this issue.
If a user is on a phone on a remote site connect via site to site vpn and another call comes in from the outside to the receptionist and the receptionist transfers the call to the user most of the time the call will terminate when the user tries to pick up the call.
The users are using sonicwalls with H323 transformations disabled.
I isolated it as much as I could. I had one call come in on line 1 answered by receptionist 1 and the transfer worked 2-3 minutes later same scenario ,same line and same receptionist and still on a call with the same user to occupy appearance and it didn't work
The only thing useful I see in the monitor trace is.
EXCEPTION ON MEDIA CONNECTION --- Error from protocol entity! No common codecs during fast start
If a user is on a phone on a remote site connect via site to site vpn and another call comes in from the outside to the receptionist and the receptionist transfers the call to the user most of the time the call will terminate when the user tries to pick up the call.
The users are using sonicwalls with H323 transformations disabled.
I isolated it as much as I could. I had one call come in on line 1 answered by receptionist 1 and the transfer worked 2-3 minutes later same scenario ,same line and same receptionist and still on a call with the same user to occupy appearance and it didn't work
The only thing useful I see in the monitor trace is.
EXCEPTION ON MEDIA CONNECTION --- Error from protocol entity! No common codecs during fast start