[asterisk-users] 1.6, t.38 and zoiper - t38_udptl or t38pt_udptl ?
zoachien at securax.org
zoachien at securax.org
Fri Dec 5 11:08:25 CST 2008
I will publish a tutorial in the beginning of next week about how to
configure Zoiper and Asterisk to do t.38 together. (and while doing so
test the latest version again to make sure it really works)
Feel free to send us any bugtickets if you think something is broken, in
the case of t.38 support, please also include sip and udtpl captures.
Cheers,
Zoa.
Olivier wrote:
>
>
> 2008/12/5 Stefan Lekov <arcopix at erihon.com <mailto:arcopix at erihon.com>>
>
> Olivier wrote:
>
>
>
> 2008/12/3 Olivier <oza-4h07 at myamail.com
> <mailto:oza-4h07 at myamail.com> <mailto:oza-4h07 at myamail.com
> <mailto:oza-4h07 at myamail.com>>>
>
>
>
> 2008/12/3 Steve Underwood <steveu at coppice.org
> <mailto:steveu at coppice.org>
> <mailto:steveu at coppice.org <mailto: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 ?
>
>
> To be more precise, I only tried once and I wouldn't swear
> T.38 mode was used (I've checked) : maybe ReceiveFax would
> allow G711 inbound faxes.
>
>
>
>
> Steve
>
>
> Olivier wrote:
> >
> >
> > 2008/12/3 regs at kinetix.gr <mailto:regs at kinetix.gr>
> <mailto:regs at kinetix.gr <mailto:regs at kinetix.gr>>
> <mailto:regs at kinetix.gr <mailto:regs at kinetix.gr>
> <mailto:regs at kinetix.gr <mailto:regs at kinetix.gr>>>
> <regs at kinetix.gr <mailto:regs at kinetix.gr>
> <mailto:regs at kinetix.gr <mailto:regs at kinetix.gr>>
> > <mailto:regs at kinetix.gr <mailto:regs at kinetix.gr>
> <mailto: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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> The option is t38pt_udptl = yes, and has to be set in both the
> global part and in the peer. The option was t38pt_udptl in 1.4 and
> I don't think it got changed in 1.6.
> Also, you can open a ticket with us (zoiper support) on
> support at zoiper.com <mailto:support at zoiper.com>
> <mailto:support at zoiper.com <mailto:support at zoiper.com>>, and if
> you provide us with some packet captures, we should be able to
> diagnose the issue
>
>
> As I used Free edition, I didn't dare to open tickets.
Hey, if the thing is broken, i will accept any tickets to fix it :)
> I'll try to open one with appropriate setting within the next few days.
>
> Regards
>
>
>
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