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About

If you want to explore Hylafax with FreeSWITCH, you will need T38modem as a conduit between them.

 Click here to expand Table of Contents

Download

You can get the latest version at http://sourceforge.net/projects/t38modem/

Installation

Dependencies OPAL and PTLIB libraries are included in the download page in one package opal-24174.tgz. Note: Use only this package for OPAL and PTLIB as the more recent versions will not work with version 2.0.0 of T38modem.

Building T.38 Modem
tar xvzf opal-24174.tgz
cd ptlib
./configure
make all
make install
cd ../opal
./configure
make all
make install
cd ..
tar xvzf t38modem-2.0.0.tgz
cdt38modem-2.0.0
export PTLIBDIR=../ptlib
export OPALDIR=../opal
make USE_OPAL=1 opt

 

 

Dialplans

Outbound dialplan:

Fax outbound
<extension name="faxout">
   <condition field="ani" expression="^t38modem.*$"/>
   <condition field="destination_number" expression="^9(\d{8,15})$">
      <action application="set" data="absolute_codec_string=PCMU"/>
      <action application="set" data="fax_enable_t38=true"/>
      <action application="set" data="sip_execute_on_image=t38_gateway self nocng"/>
      <action application="bridge" data="sofia/gateway/outboundgateway/$1"/>
   </condition>
</extension>

 

 

Inbound dialplan. This assumes that you have 5 instances of t38modem listening. Calls to 1000-1004 from the gateway at 10.10.0.2 will be routed to t38modem0 through t38modem4.

Fax inbound
<extension name="from_gateway_fax" >
   <condition field="network_addr" expression="10.10.0.2"/>
   <condition field="context" expression="default"/>
   <condition field="destination_number" expression="^100([0-4])$">
        <action application="bridge" data="{sip_execute_on_image='t38_gateway self nocng'}user/t38modem$1@${domain_name}"/>
   </condition>
</extension>