[asterisk-users] Problem with ReceiveFax

[Kevin P. Fleming]

On 03/12/2012 04:27 AM, Ishfaq Malik wrote:

> I've tried this with the f option on receiveFax but it still isn't
> working. Any insight would be helpful as this is driving me a bit potty
>
>    == Using UDPTL CoS mark 5
>    == Using SIP RTP CoS mark 5
>      -- Executing [200 at local:1] Goto("SIP/588-00000000", "fax-in,s,1")
>      -- Goto (fax-in,s,1)
>      -- Executing [s at fax-in:1] Answer("SIP/588-00000000", "")
>      -- Executing [s at fax-in:2] Wait("SIP/588-00000000", "3")
>      -- Executing [s at fax-in:3] Set("SIP/588-00000000", "FAXFILE=/tmp/fax-588-20120312-092231.tiff")
>      -- Executing [s at fax-in:4] ReceiveFAX("SIP/588-00000000", "/tmp/fax-588-20120312-092231.tiff,f")
>      -- Channel 'SIP/588-00000000' receiving FAX '/tmp/fax-588-20120312-092231.tiff'
> [2012-03-12 09:22:34] WARNING[4529]: res_fax.c:1508 receivefax_t38_init: channel 'SIP/588-00000000' refused to negotiate T.38
>      -- Channel 'SIP/588-00000000' FAX session '0' started
> [2012-03-12 09:22:34] WARNING[3763]: chan_sip.c:8740 process_sdp: Unsupported SDP media type in offer: audio 0 RTP/AVP 8
> [2012-03-12 09:22:34] WARNING[3763]: chan_sip.c:8827 process_sdp: Failing due to no acceptable offer found
> [2012-03-12 09:22:44] ERROR[4529]: res_fax.c:1344 generic_fax_exec: channel 'SIP/588-00000000' FAX session '0' failure, reason: 'fax session timed-out' (TIMEOUT)

When the T.38 re-INVITE was rejected by your SIP peer, they sent an SDP 
offer with the audio stream set to port number zero ('0'). This means 
the audio stream is not active, and thus cannot be used.

-- 
Kevin P. Fleming
Digium, Inc. | Director of Software Technologies
Jabber: kfleming at digium.com | SIP: kpfleming at digium.com | Skype: kpfleming
445 Jan Davis Drive NW - Huntsville, AL 35806 - USA
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