transfering of calls failed with some providers

[tjareson]

I'm using a sip-provider in germany (sipgate) which changes someting in his configuration. So since two days, I'm not able to transfer any call which is received somewhere with Axon (received means by group-on-hold music or by ivm or by phone) Result is, that I can't use the groups anymore, because after transfering a call from a group to a phone (or to ivm after x seconds) you can't here anything or the call is cut off at all.

The provider told me, that they don't accept incorrect formated sip-packets anymore (whatever that means) I suspect, that this is something with changing codecs from axon to the phone or to ivm...

 

Are there any experiences what kind of codec axon uses at all? If an incoming call is queued up in a group, it get's some on-hold music (if configured). Does anyone know, what kind of codec is used for this?

Anyone the same problems with other voip-providers?

 

Regards

Tjareson