On 22/11/2013 6:49 AM, Alyed wrote:
Have you followed the instructions in:
https://wiki.asterisk.org/wiki/display/AST/T.38+Fax+Gateway
and: http://www.voip-info.org/wiki/view/Asterisk+T.38+Gateway
??

If possible try with a different ATA since it seems not all of them work
fine with fax pass trough.

Alyed


My understanding of the original posting is that when a voice call arrives from the SIP provider it includes T38 information though the user only wants to accept the g729 component of the call and carry out a voice conversation.

If a fax is being received by the SIP provider it only has a the T38 information for the call thus no audio (g729) information is in the SIP message.

I don't believe the original poster is attempting to receive a facsimile, instead use voice calls.

Larry.

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