[Asterisk-Users] X-Lite & Asterisk: Speex & iLBC not working?

[Wim Venneman]

If this may be of any use:

I'm not an expert but I did the test with the FWD soft phone from X-ten and
iLBC & SPX don't work.
Asterisk wasn't between the connections. Just x-lite and fwd (who is an
Asterisk Server?)
The soft phone makes the connection but I can't hear any sound.

Wim


----- Original Message -----
From: "Fran Boon" <flavour at partyvibe.com>
To: <asterisk-users at lists.digium.com>
Sent: Monday, January 26, 2004 3:01 PM
Subject: [Asterisk-Users] X-Lite & Asterisk: Speex & iLBC not working?


> This seems to have been reported before, but I've seen no resolution:
> http://lists.digium.com/pipermail/asterisk-dev/2003-August/001470.html
> http://lists.digium.com/pipermail/asterisk-users/2003-August/019091.html
> http://lists.digium.com/pipermail/asterisk-users/2003-October/024472.html
>
> When forcing use of Speex, no sound comes out at all (Speex-1.0.3 on the
> Asterisk server)
> When forcing iLBC, there is some very garbled noise, but nothing
> intelligible.
>
> Sniffing the packets, I can see that X-Lite & Asterisk have chosen
> differing 'Payload type' numbers:
> X-Lite:
> a=rtpmap:97 speex/8000
> a=rtpmap:98 iLBC/8000
> Asterisk:
> a=rtpmap:97 iLBC/8000
> a=rtpmap:110 SPEEX/8000
>
> According to the Speex RFC, this is acceptable:
> http://speex.org/drafts/draft-herlein-speex-rtp-profile-00.txt
> "Dynamic payload type codes MUST be negotiated 'out-of-band' for the
> assignment of a dynamic payload type from the range of 96-127."
>
> I'm wondering whether the system is at all case sensitive?
>  From the RFC:
> "When conveying information by SDP [4], the encoding name SHALL be
"speex"."
>
> NB Ethereal shows payload-type as being 97 when X-Lite reports iLBC &
> 110 when X-Lite reports Speex, so the Asterisk numbers seem to 'win'.
>
> Any light shed on this would be great.
> Whilst GSM is ok, it would be great to leverage the power of Speex :)
>
> Thanks a lot,
> Fran.
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