Subscription Request

pmreddy at HSS.HNS.COM pmreddy at HSS.HNS.COM
Thu Mar 15 00:13:34 EST 2001

I think that they just need people sending them emails saying "Company X
demonstrated G.723.1 interoperability with Company Y".

Some people have started to send those to Stephen Casner [casner at].

He's looking for people who implemented the early version of H.263-1996 and

If you do, respond, because they will remove the payload type...

-----Original Message-----
From: Rex Coldren [mailto:coldrenr at]
Sent: Wednesday, March 14, 2001 11:37 AM
To: Audet, Francois [SC2:4K02:EXCH]
Cc: ITU-SG16 at mailbag.cps.INTEL.COM
Subject: Re: FW: [VoIP-list] FW: [Fwd: AVT WG last call on RTP spec and
profil e]


I believe you are correct.  However, I am not familiar with how the IETF
"interoperable implementations".  Is is simply a matter of vendors reporting
with whom
they interoperate or is there some IETF-sponsored interop event that needs
to be


Francois Audet wrote:

 Guys,This payload type = 4 for G.723.1 has been in H.225.0 for many years.
Don't we have many interoperable H.323 products using PT=4 for G.723?Won't
it be a major interoperability problem if this payload type is removed from
the A/V specification?????> -----Original Message-----
> From: Simao Campos-Neto [ mailto:simao.campos at LABS.COMSAT.COM
<mailto:simao.campos at LABS.COMSAT.COM>
> < mailto:simao.campos at LABS.COMSAT.COM
<mailto:simao.campos at LABS.COMSAT.COM> > ]
> Sent: Friday, March 09, 2001 8:27 AM
> Subject: [Fwd: AVT WG last call on RTP spec and profile]
> Dear colleagues,
> please see in the attached that audio payload formats for G.723.1,
> called there "G723", has been removed from the latest RTP A/V profile
> because of the lack on information that interoperable implementations of
> them exist. Other audio payload formats have also been removed, e.g.
> H263 (this is not the same as H263-2000), GSM-HR, GSM-EFR, If you know
> of such implementations, there is still some VERY short time (less than
> 2 weeks) before the IETF issues the repeat WG last call. Please provide
> any such information directly to Stephen Casner <casner at>.
> Best regards,
> Simao.

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