[Linphone-users] GSM problem

[John]

I am using the voip provider voip2gsm.de
I choose the gsm codec which is supported by linphone and voip2gsm.
If I try to anwser calls it just quits the call. I changed the codec and 
everything works fine.
The problem is limited to the gsm codec. I can provide a log but I do 
not want to make it public.