G.723.1 vs. G.723

Sebestyen Istvan ICN WN ES SP 4 Istvan.Sebestyen at ICN.SIEMENS.DE
Wed Oct 6 11:46:11 EDT 1999


G.723 was an old ITU-T Recommendation that has been withdrawn
and has nothing to do with G.723.1. So, when people today use
G.723 they usually mean G.723.1.

For the software version this is a bit confusing:
For the most current version it is best to look up the ITU-T Database:
Unfortunately, in the text of the Recommendation no reference is made to the
actual C-Code version (we have requested to have a better version control
for the future Recommendations). On the top of it since C-Code
is also a program (contains as many bugs as any other program...:-( ), in
some of the
past SG meeting bugs were corrected (so you have to go through the SG16
reports). I am not sure whether eventually the bug corrections have been
incorported into the C-Code that the ITU is currently selling as the latest
version. So, my message is that extrem care is needed not to miss

Dr. Istvan Sebestyen
Siemens AG, ICN WN ES SP 4,
Hofmannstr. 51 D-81359 Munich
E-Mail: istvan.sebestyen at icn.siemens.de

> ----------
> From:         Paul Long[SMTP:plong at SMITHMICRO.COM]
> Reply To:     Mailing list for parties associated with ITU-T Study Group
> 16
> Sent:         Wednesday, October 06, 1999 5:29 PM
> To:   ITU-SG16 at mailbag.cps.intel.com
> Subject:      G.723.1 vs. G.723
> What is the difference between G.723.1 and G.723? And I don't mean the
> numerical difference, as in 0.1 :-) Are they the same thing, and people
> are
> just being imprecise when they refer to G.723.1 as "G.723?" For SuperOp!
> scheduling, they were both listed as two of the possible audio codecs, as
> if
> they were different. Does anyone truly support G.723 but not G.723.1? If
> so,
> I've never come across such an implementation. Also, what is the history
> of
> G.723.1? I believe the current version is something called 5.1. Is this
> correct? Were there some intermediate versions?
> Paul Long
> Smith Micro Software, Inc.

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