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

[Olivier]

2008/12/3 Steve Underwood <steveu at coppice.org>

> 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.


I could receive yesterday from Zoiper 2.18 Windows free edition with
ReceiveFAX installed with latest Asterisk 1.6.X.
Would you like more details ?

>
>
> 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
> >
>
>
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