the fax to fail avantfax

Discussion in 'General' started by alejo12, Jul 31, 2009.

  1. alejo12

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    hi

    there are many threads for avantfax, but I could not find the following error

    avantfax installed according to this link http://www.elastix.org/index.php?option ... tstart=120

    including tty show that they are receiving the fax

    I leave the log for me to collaborate


    Hey! chan SIP/6040464-08e088d0's context='macro-dial', and exten='s'
    [Jul 31 15:34:18] DEBUG[23959] chan_iax2.c: prepending 4 to prefs
    [Jul 31 15:34:18] VERBOSE[23959] logger.c: -- Called 125
    [Jul 31 15:34:18] VERBOSE[2929] logger.c: -- Call accepted by 127.0.0.1 (format ulaw)
    [Jul 31 15:34:18] VERBOSE[2929] logger.c: -- Format for call is ulaw
    [Jul 31 15:34:18] VERBOSE[23959] logger.c: -- IAX2/125-6854 is ringing
    [Jul 31 15:34:18] VERBOSE[23959] logger.c: -- IAX2/125-6854 answered SIP/6040464-08e088d0
    [Jul 31 15:34:25] WARNING[2958] chan_sip.c: Unsupported SDP media type in offer: image 18296 udptl t38
    [Jul 31 15:34:35] WARNING[2958] chan_sip.c: Maximum retries exceeded on transmission 5846E370-7D4811DE-971DE47E-C5D8AF23@10.8.109.33 for seqno 102 (Critical Response) -- See doc/sip-retransmit.txt.
    [Jul 31 15:34:35] WARNING[2958] chan_sip.c: Hanging up call 5846E370-7D4811DE-971DE47E-C5D8AF23@10.8.109.33 - no reply to our critical packet (see doc/sip-retransmit.txt).
    [Jul 31 15:34:35] VERBOSE[23959] logger.c: -- Executing [h@macro-dial:1] Macro("SIP/6040464-08e088d0", "hangupcall") in new stack
    [Jul 31 15:34:35] VERBOSE[23959] logger.c: -- Executing [s@macro-hangupcall:1] ResetCDR("SIP/6040464-08e088d0", "w") in new stack
    [Jul 31 15:34:35] DEBUG[23959] app_macro.c: Executed application: ResetCDR
    [Jul 31 15:34:35] VERBOSE[23959] logger.c: -- Executing [s@macro-hangupcall:2] NoCDR("SIP/6040464-08e088d0", "") in new stack




    thank you and hope for your comments
     
  2. ramoncio

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    > chan_sip.c: Unsupported SDP media type in offer: image 18296 udptl t38


    It looks as if you are trying to receive a T.38 fax. Asterisk 1.4 can't work as T.38 termination, AFAIK. That is why chan_sip gives that error.
     
  3. danardf

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    Hi Ramoncio!

    Asterisk don't support any FAX T38 on a SIP trunk?
    If it's true, It's not cool. :blink:
     
  4. ramoncio

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    Asterisk 1.4 can't do T.38 termination, but it supports T.38 passthrough. You can configure a trunk with a T.38 compatible gateway and plug a fax in it. Some Granstreams are T.38 compatible, but I've never tried that. The problem is that most VoIP providers don't support T.38.
     
  5. danardf

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    My problem is that the Alcatel OXE support only the T38.
    I did make a trunk SIP and work fine, excepted the fax.

    From virtual fax to PAP2T : ok
    From PAP2T to Virtual Fax : ok

    Asterisk 1.6 is ready to work T38?
     
  6. ramoncio

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  7. danardf

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    Yes Ramoncio, I have already read this link. Thanks

    It's not important for the instant. ;)

    I just make some simple test between an Elastix and an OXE, that's all.
     

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