[asterisk-users] 1.6, t.38 and zoiper - t38_udptl or t38pt_udptl ?

[Steve Underwood]

Hi,

I would be interested in any reports of anyone getting a T.38 FAX to 
send or receive successfully with Zoiper. I've tried to test my T.38 
implementation against more than one revision of Zoiper, and I yet to 
see it behave sanely.

Steve


Olivier wrote:
>
>
> 2008/12/3 regs at kinetix.gr <mailto:regs at kinetix.gr> <regs at kinetix.gr 
> <mailto:regs at kinetix.gr>>
>
>     I tried sending faxes through Zoiper (Zoiper to Zoiper) last week
>     and the program crashed. After an update it stopped crashing but
>     still could not send a FAX. I then tried Kapanga (the free version
>     has a limited 30
>     days FAX sending capability) and it worked. This might be of
>     little use
>
>
> No it has much value to me.
>
> I was already suspicious about Zoiper as I could send fax between 
> other endpoints.
>
> Originally, I thought using the same software on both could help to 
> validate other settings (tuning of sip.conf) but to my surprise I 
> couldn't find much about Zoiper fax capabilities.
> I have the rough feeling Zoiper can't receive fax at the moment or 
> either, tuning Asterisk to allow that is not simple.
> For sending, I won't rate it at the moment.
>
>  
>
>     to you
>     since I used Freeswitch with t38 pass-trhough, but my point is :
>     first find a client
>     that supports t38 FAX capabilites that work and then try asterisk.
>     Our company had success
>     sending FAX using t38 through asterisk along time ago so I guess
>     you will get there sooner or later.
>
>     Olivier wrote:
>>     Hi,
>>
>>     1. Has anyone got any success when send a TIFF file form one
>>     zoiper softphone to another ?
>>     I tried using Zoiper 2.18 free edition in windows but I'm seeing
>>     415 Unsupported media replies.
>>
>>     2. Here (http://www.voipinfo.org/wiki/view/Asterisk+T.38), you
>>     can read :
>>     "Also, try using:
>>
>>      t38_udptl=yes
>>      t38pt_rtp=no
>>      t38pt_tcp=no
>>
>>     ... in the general section of the sip.conf and under the VoIP
>>     provider account as well as the fax account. "
>>
>>     But above, you can read
>>     "[general]
>>     t38pt_udptl = yes "
>>
>>     Has this parameter name changed between 1.4 to 1.6 from t38_udptl
>>     to t38pt_udptl ?
>>     A asterisk remains silent when I add an unknown parameter
>>     "foo=bar", it would perfect if someone could point the right name
>>     (t38_udptl or t38pt_udptl).
>>
>>     Regards
>