[Freeswitch-users] fax relay question

[Darcy Primrose]

This can be closed, I did a little more research and found this ws aknown problem in 1.4.13, I backed up to 1.4.12 and it is ok now.  I shall track this before moving ahead again.  It only affects certain devices and carriers, we just happen to have on of the carriers that did not deal with correctly.  Incidentally the use yate as their tandem.

Darcy
  ----- Original Message ----- 
  From: Darcy Primrose 
  To: FreeSWITCH Users Help 
  Sent: Monday, January 12, 2015 5:59 PM
  Subject: [Freeswitch-users] fax relay question


  We use a freeswitch as a relay between our carriers and other freeswitches, it has worked great until we upgraded to the latest  freeswitch version recently
  We we receive a fax, inbound and relay it, the subsequent re invite we get back looks like the frist block below, then when the freeswitch relays it, it adds 
  in " Media Description, name and address (m): audio 0 RTP/AVP 19".  The originating carrier sees this and responds with audio instead of T38, the call drops.

  Any hints would be greatly appreaciated,  I do not really want to go back to a previous release if I can avoid it.

   

              Connection Information (c): IN IP4 98.158.137.200
              Time Description, active time (t): 0 0
              Media Description, name and address (m): image 18392 udptl t38
              Media Attribute (a): T38FaxVersion:0
              Media Attribute (a): T38MaxBitRate:14400
              Media Attribute (a): T38FaxFillBitRemoval
              Media Attribute (a): T38FaxRateManagement:transferredTCF
              Media Attribute (a): T38FaxMaxBuffer:2000
              Media Attribute (a): T38FaxMaxDatagram:400
              Media Attribute (a): T38FaxUdpEC:t38UDPRedundancy

              Connection Information (c): IN IP4 98.158.137.200
              Time Description, active time (t): 0 0
              Media Description, name and address (m): audio 0 RTP/AVP 19
              Media Description, name and address (m): image 18392 udptl t38
              Media Attribute (a): T38FaxVersion:0
              Media Attribute (a): T38MaxBitRate:14400
              Media Attribute (a): T38FaxFillBitRemoval
              Media Attribute (a): T38FaxRateManagement:transferredTCF
              Media Attribute (a): T38FaxMaxBuffer:2000
              Media Attribute (a): T38FaxMaxDatagram:400
              Media Attribute (a): T38FaxUdpEC:t38UDPRedundancy

  Darcy
  Voice2Net


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