[Asterisk-Users] Serious Audio Problem.

[desoft at freemail.gr]

My configuration is: 1) Channel bank with T1 card. Capi Interface with C4 card, An IP phone.
I have actually the above problem:
I record a file.
I try to hear it and it gets heared well from some interfaces while from others is heared with interruptions. Actually I hear well throught the Capi and IP interface while interrupted from the Zap interface, but just before 3 minutes it was the opposite.
I have also another problem that is that sometimes the zap interface is unable o recognize the Dtmf digits (that are transmitted as mangled dtmf digits to another connected phone).
Both of the above problems create to me suspects that a problem with the alaw and ulaw codifications is present into the code and that alaw saved files are played to ulaw equipment unmodified (whitout changing the format on the fly).
Specifically I have tested to register an alaw file and then the IpPhone and the capi interface do hear well while the Zap interface hears badly, while if I do register the file as ulaw then the opposite is true.
As this is a serious useability problem, I cannot understand why it went unnoticed until now. Does anybody knows something about it ?
Maybe the problem arises only when both alaw and ulaw files are saved with the same name, but i cannot be sure. But the other problem with the dtmf detection doesn't depends on it.
Some help and info please!!!