[asterisk-users] Getting channel 'SIP/192.168.1.69-00000000' refused to negotiate T.38

[Ahmed Munir]

Hi,

I recently configured T.38 on Asterisk 10.4.2. When I send the fax to
Asterisk, it gives the errors as listed below;

 WARNING[25986]: app_fax.c:442 transmit_audio: channel
'SIP/192.168.1.69-00000000' refused to negotiate T.38
 WARNING[25986]: app_fax.c:174 span_message: WARNING T.30 ECM carrier not
found

As in sip.conf the configuration is listed below;

t38pt_udptl = yes,fec,maxdatagram=400
faxdetect = t38

And the rest are the standard configuration.

Please advise to resolve this issue.

-- 
Regards,

Ahmed Munir Chohan
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