[Asterisk-Users] Can't receive Faxes with Asterisk (help)

Chris listmail at odisok.net
Mon Sep 26 07:58:34 MST 2005


    I haven't found a solution to it.    It's not a matter of turning up the phone volume because I'm receiving and sending the faxes directly from Asterisk with SpanDSP (Pre 20).    I've tried different versions of SpanDSP and LibTiff.     It's the same result no matter what.


Regards,


Chris

  ----- Original Message ----- 
  From: adiaz0 at gmail.com 
  To: asterisk-users at lists.digium.com 
  Sent: Monday, September 26, 2005 6:12 AM
  Subject: Re: [Asterisk-Users] Can't receive Faxes with Asterisk (help)


  Hi, 
     Yes, I have changed it. I tried as you have done, I put txgain and rxgain to "0" and it was possible receive and send faxes. I'm using two TDM400P (FXS with 4 ports and FXO with 4 ports). In my tests I'm sending faxes to asterisk from fax machine connected to one of the FXS ports. 
  The problem is, if put tx and rx gain to 0 in the conversations coming from FXO channels hear very very low.
  What can I do then, any idea ?



  On 9/23/05, Chris <listmail at odisok.net> wrote: 
      Are you trying through Zap channels?
    Have you changed the RXGain or TXGain?

       I can send faxes if I use RXGain= 20.0 but I can not receive unless I
    have the RX and TX set to 0.



    Chris

    ----- Original Message -----
    From: <adiaz0 at gmail.com>
    To: < asterisk-users at lists.digium.com>
    Sent: Friday, September 23, 2005 2:15 PM
    Subject: [Asterisk-Users] Can't receive Faxes with Asterisk (help)


    > Hi,
    >    I have an Asterisk CVS-HEAD-08/29/05-13:21:43 built on a Redhat 9. 
    > I have problems to receive faxes with spandsp-0.0.2pre11 and
    > libtiff-3.5.7-11.
    > I'm trying with a fax machine Panasonic KX-FT25, 14.4Kbps modem speed.
    > I have tested sending a Fax document from Asterisk to the fax machine, 
    > it is working fine, but when I try to receive with asterisk, I receive
    > transmission error on the fax machine side.
    >
    > my extensions.conf
    >
    > exten =>301,2,Background(mp)
    > exten =>fax,1,RxFax(/home/admin/testfax.tif) 
    >
    > and I have tried with as well. Press * star on the fax machine and
    > after hear the fax tone press the start button to send the document.
    >
    > exten =>301,2,Background(mp)
    > exten =>*,1,RxFax(/home/admin/testfax.tif) 
    >
    > Can somebody help me ?


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