[asterisk-users] Movistar sip Mexico

[Damian Gonzalez]

Hello,

I have a problem with movistar in Mexico with a sip calls. Movistar send to
me T38 and G729 in the INVITE and they say that I have to ignore T38 and
use G729 in the voice call.

When a fax call is made Movistar send only T38 in the INVITE.

Invite example:

v=0
o=GDL-BMSW-12D 19913379 19899826 IN IP4 192.168.1.2
s=sip call
c=IN IP4 192.168.1.2
t=0 0
m=audio 6370 RTP/AVP 18 101
a=fmtp:18 annexb=yes
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
a=ptime:20
m=image 6372 udptl t38
a=T38FaxVersion:0
a=T38FaxMaxBuffer:1100
a=T38FaxMaxDatagram:612
a=T38MaxBitRate:14400
a=T38FaxRateManagement:transferredTCF
a=T38FaxUdpEC:t38UDPRedundancy

How can I  ignore T38 and use only G729 for this call?.

Thanks for your help.

Damian


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