[asterisk-users] Audio problems ins conference zap->sip

[Sara Pavón]

Hello!

I have several problems in the audio one belonging to asterisk at
conferences between ZAP - SIP. I hope that you may help me.

1 Problem

When the audio establishes a call between two canals, some zap and another
sip itself one listens interrupted in one of the senses, exactly in zap sip,
with audio cuts. Words lose at random, in that connection, however in the
sense sip zap the conversation is listened to perfectly without cuts.

Sip in one of the extremes and a equipment in the other one is using a
customer itself. Detection makes out the aforementioned of silence, cut
short communication when you detect than it has been stopped talking like a
walkie however from your side the cuts take place when there is voice, that
is, when the team is transmitting data. When the team makes out detection of
silence and the communication cuts asterisk short is sent plots I hide
extremes to the other and that works correctly.

 We have accomplished different proofs to be able to discard possible
motives they take place for these cuts:

1) When sip establishes a call with two canals itself ( sip - sip ) the
audio is perfect in both senses, cuts of voice do not take place.

2) Zap on file has modified the profits of the canal itself zapata.conf and
changes have not been produced, the audio is followed cutting.

3) Possible problems of echo in the audio have been discarded.

4) Several parameters have gotten modified ( internal timing, jbenable,
jbforce...) That they could have a soothing effect or solving these
unsuccessful cuts

5) The changes indicated by asterisk's patch have applicator themselves
asterisk 1,2,4 silence suppression 4.patch and the audio maintains equal
itself.

6) Zap's call has come true - sip with the customer sip and a normal
telephone and communication is right, the cuts do not take place of audio.

2 Problema

Another problem I have met with is in the same case than before, in a
communication zap sip, when he is being spoken to at both ends to them time,
the audio in the sense zap sip falters.

This problem happens either detection does not make out which of silence so
that you are always with a team with detection of silence same as for a
normal telephone transmitting.
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