You are doing nothing wrong. It's just broken feature.... been broken
for a while, too.
On Thu, Mar 27, 2008 at 5:23 AM, Marek Zelem <[EMAIL PROTECTED]> wrote:
>
> Hi
>
> I want to replace Asterisk with Callweaver because I need reliable
> faxing. I have ISDN BRI intefrace working through chan_capi in Callweaver
> (svn 1.2) and I have fax machine connected via SIP ATA with T38 support.
> I need incoming and outgoing faxes working over T38, so Callweaver
> working as T38 Gateway between chan_capi and T38 SIP. If I understand the
> documentation correctly this should work but probably I am doing something
> wrong.
>
> In sip.conf I have:
> t38udptlsupport=yes
> t38rtpsupport=yes
> (In both, general section and in my ATA fax section - I do not know
> whether I need to repeate it in ATA fax section, in Asterisk it is
> required)
>
> Extensions.conf:
> [isdn_incoming_context]
> exten => xxx,1,T38Gateway(SIP/atafax)
>
> [atafax_context]
> exten => _0.,1,T38Gateway(CAPI/ISDN1/${EXTEN},600,W)
>
> Actualy I wanted to do something more complex but to get it work I
> started with simplest thing.
>
> When I am sending or receiving fax I am getting 'rtp.c: Unknown RTP codec
> 100 received' message and of course faxing is very unreliable. As far as I
> know, this message in asterisk means that ATA tried to switch to T38 and
> support of T38 is off. I don't understand it deeply, just know that this
> occures when you have 't38pt_udptl=no' in asterisk.
>
> I was also playing with SipT38SwitchOver() and the result was even worse.
> I was flooded with following messages:
> chan_capi.c: ISDN1#02: failed to fill smoother
> frame.c: Smoother was working on 8 format frames, now trying to feed 64?
>
> Can you please tell me what I am doing wrong?
>
> Thanks in advance
>
> Marek
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>
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