Hi Kelvin, thank you for your response, well in fact it is not working but that's only a NOTICE, not an error. Warnings comes after that and the fax is not sent. Take a look at the last lines of this output :
<< [ TYPE: Control (4) SUBCLASS: Ringing (3) ] [SIP/GWCISCO5400O-01ba5638] IVR3*CLI> debug channel all SIP/GWCISCO5400O-01ba5638 SIP/T38modem-01ba2178 << [ TYPE: Control (4) SUBCLASS: Answer (4) ] [SIP/GWCISCO5400O-01ba5638] << [ TYPE: Null Frame (5) SUBCLASS: N/A (0) ] [SIP/GWCISCO5400O-01ba5638] << [ TYPE: Control (4) SUBCLASS: T38/Negotiation Requested (19) ] [SIP/GWCISCO5400O-01ba5638] << [ TYPE: Null Frame (5) SUBCLASS: N/A (0) ] [SIP/GWCISCO5400O-01ba5638] [Jul 16 18:20:20] NOTICE[2846]: rtp.c:1739 ast_rtp_read: Unknown RTP codec 96 received from '192.168.3.163' << [ TYPE: Null Frame (5) SUBCLASS: N/A (0) ] [SIP/GWCISCO5400O-01ba5638] [Jul 16 18:20:21] NOTICE[2846]: rtp.c:1739 ast_rtp_read: Unknown RTP codec 96 received from '192.168.3.163' << [ TYPE: Null Frame (5) SUBCLASS: N/A (0) ] [SIP/GWCISCO5400O-01ba5638] [Jul 16 18:20:21] NOTICE[2846]: rtp.c:1739 ast_rtp_read: Unknown RTP codec 96 received from '192.168.3.163' << [ TYPE: Null Frame (5) SUBCLASS: N/A (0) ] [SIP/GWCISCO5400O-01ba5638] << [ TYPE: Null Frame (5) SUBCLASS: N/A (0) ] [SIP/GWCISCO5400O-01ba5638] << [ TYPE: Null Frame (5) SUBCLASS: N/A (0) ] [SIP/GWCISCO5400O-01ba5638] [Jul 16 18:20:30] WARNING[2815]: chan_sip.c:3075 retrans_pkt: Maximum retries exceeded on transmission 1af1c92e-9270-de11-8264-001517bb9...@ivr3for seqno 1 (Critical Response) -- See doc/sip-retransmit.txt. [Jul 16 18:20:30] WARNING[2815]: chan_sip.c:3102 retrans_pkt: Hanging up call 1af1c92e-9270-de11-8264-001517bb9...@ivr3 - no reply to our critical packet (see doc/sip-retransmit.txt). Do you have an idea of what is happening ? I sniffed UDP traffic on port 5060 and I get : INVITE SDP ( t38 ) ----------------------> TRYING <---------------------------------- NOT ACCEPTABLE HERE<------------ ACK------------------------------------------------> BYE<----------------------------------------------- 200 OK--------------------------------------------> Thanks for your help. On Thu, Jul 16, 2009 at 6:17 PM, Kevin P. Fleming <[email protected]>wrote: > Xavier Cardil wrote: > > Hi, I've managed to get HYLAFAX---->T38MODEM-----> > > ASTERISK---->CISCOAS5400 working, but when they are negotiating asterisk > > drops a message telling "Unknown RTP codec 96 received from gateway" Do > > somebody know how to fix it ? > > There's nothing to fix; the gateway sent an expected RTP packet, which > Asterisk dropped. If your FAX works, then you can ignore this. > > -- > Kevin P. Fleming > Digium, Inc. | Director of Software Technologies > 445 Jan Davis Drive NW - Huntsville, AL 35806 - USA > skype: kpfleming | jabber: [email protected] > Check us out at www.digium.com & www.asterisk.org > > _______________________________________________ > -- Bandwidth and Colocation Provided by http://www.api-digital.com -- > > asterisk-users mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users >
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