I’m having trouble with a termination service provider and trying to figure out what the problem is. The problem is that I’m getting choppy audio, but only in one direction.
- SIP to SIP calls are perfect.
- Incomming calls are fine.
- Outgoing calls - I can here them fine - but I’m choppy to them.
I have a friend using the same service and he has his own asterisk box and he’s having exactly the same problem.
We got a different termination service and both of us can make outgoing calls without the choppy voice. But - I’m trying to figure out the problem for my first provider who is running Asterisk servers.
So - the real question is - what is the first provider doing wrong - or is there something about our servers that might be incompatible with his servers.
Tried several codecs - no difference.
Tried SIP and IAX2 - no difference.
Both servers are in a good colo and have plenty of bandwith - no NAT.
What would make audio bad consistently only in one direction?