Hi all,
I make mistakes in my explanation, so I will try to re-explain my problem... I want to send fax with FoIP. Analog Fax <----> PATTON SN4960 <----> Asterisk <----> PATTON M-ATA <----> Analog Fax 2 In the Patton SN4960 configuration I have : profile voip FOIP codec 1 g729 rx-length 20 tx-length 20 no-silence-suppression codec 2 g711alaw64k rx-length 30 tx-length 30 no-silence-suppression codec 3 g711ulaw64k rx-length 30 tx-length 30 no-silence-suppression dtmf-relay signaling dejitter-max-delay 100 fax transmission 1 relay t38-udp fax redundancy low-speed 2 high-speed 1 fax detection fax-frames modem transmission 1 bypass g711alaw64k modem bypass-method nse On Patton M-ATA : 1. codec alaw 2. codec ulaw 3. codec g729 No silence suppression on these codecs. I not use this option "FAX without T.38(Use G.711 fax)" On asterisk side I have: [general] context=default bindport=5060 bindaddr=0.0.0.0 srvlookup=yes disallow=all allow=alaw dtmfmode = rfc2833 rtcachefriends=yes realm=vtxvoip useragent=VTX SIP rtupdate=yes language=en tos=184 notifyringing=yes t38pt_udptl=yes And t38pt_udptl=yes in the 2 PATTONs sip accounts ... Then, I made a trace when I call from Analog FAX 2 to Analog fax 1 .... I received T.38 packets from the Patton sn4960 but no T.38 packets go through the Asterisk .... And on the asterisk I have 3 WARNINGS: [Feb 15 10:05:24] WARNING[9167]: channel.c:3033 ast_channel_make_compatible: No path to translate from SIP/sip_trunk_gva-01-0071e6b0(256) to SIP/0xxx0379xx-0070a490(8) [Feb 15 10:05:33] WARNING[9163]: channel.c:2702 set_format: Unable to find a codec translation path from alaw to g729 [Feb 15 10:05:33] WARNING[9163]: channel.c:2702 set_format: Unable to find a codec translation path from alaw to g729 What I really not understand it's why asterisk try to translate from ulaw to g729 !!! I disallow all and allow just the alaw codec ... more than this, I remove the g729 licence file ... Do you have an idea for me ?? Thanks a lot, Thomas
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