[Freeswitch-users] t38modem + FreeSWITCH problem

Mailings Mailings at kh-dev.de
Wed May 13 15:55:05 PDT 2009


I just tried FreeSWITCH together with t38modem and HylaFAX.
But when I bridge the call to the modem I get the following error:

2009-05-14 00:22:38 [ERR] sofia.c:3280 sofia_handle_sip_i_state() Reinvite Codec Error!

Does anyone know how to set this up?

To PSTN I use a Lancom router which converts T38 to Euro-ISDN and vice versa.

The t38modem was started with the following parameters:
  /usr/bin/t38modem -tt -o /var/log/t38modem.log --no-h323 -u t38modem --sip-register t38modem at freeswitch,password --sip-listen udp\$ --ptty +/dev/ttyT38-1 --route "modem:.*=sip:<dn>@" --route "sip:.*=modem:<dn>"

I also created a directory entry for FreeSWITCH with the following content:
    <user id="t38modem">
        <param name="password" value="password"/>
        <variable name="toll_allow" value="domestic,international,local"/>
        <variable name="accountcode" value="t38modem"/>
        <variable name="user_context" value="default"/>
        <variable name="effective_caller_id_name" value="Fax"/>
        <variable name="effective_caller_id_number" value="xxxxxxxx"/>
        <variable name="outbound_caller_id_name" value="$${outbound_caller_name}"/>
        <variable name="outbound_caller_id_number" value="$${outbound_caller_id}"/>
        <variable name="max_calls" value="1"/>
        <variable name="callgroup" value="default"/>

The bridging is done in perl:
  $session->execute("bridge","user/t38modem@" . $VARS{"domain"});

Any help is appreciated.

Thanks, Klaus

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