[asterisk-users] 1.6, t.38 and zoiper - t38_udptl or t38pt_udptl ?
Olivier
oza-4h07 at myamail.com
Fri Dec 5 11:33:50 CST 2008
2008/12/5 zoachien at securax.org <zoachien at securax.org>
>
> 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)
Fine !
I'll wait for it and report suggestions or issues.
Thanks!
> 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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