[Asterisk-Users] g729 + GSM + g723

[Kanuri, Seshu]

Benj,

This is a good tip and we will try it out tonight to see how that works. I will keep the forum posted. 
By the way the tests with Azatel Box at one end in canada and SIPURA at the other end with me were great( offcourse why wouldn't they be)

Thanks once again.

Seshu Kanuri


-----Original Message-----
From: asterisk-users-admin at lists.digium.com [mailto:asterisk-users-admin at lists.digium.com]On Behalf Of Sunrise Ltd
Sent: Tuesday, July 27, 2004 2:26 PM
To: astusr
Subject: Re: [Asterisk-Users] g729 + GSM + g723


Kanuri, Seshu wrote:

> Conclusions:
> --------------
> 1)Codec g729 does not help in the connectivity
> between two users using GSM at one end.
> 2)Xten does not have support for G729 and
> hence is not the right choice for connectivity
> to Asterisk.

ILBC is your friend. Many softphones support it and more
and more hardphones support it, too.

If your end user gear supports ILBC, then the reasons to
use G.729 or GSM are not all too compelling.

We've been making phone calls from Egypt to Japan with a
33.6K dialup modem on what has got to be one of the
world's most mediocre telephone lines (getting roughly 20K
out of it - but very unstable). ILBC and IAX2 was the only
thing that worked - nothing else would - and it was
virtually indistinguishable from a PSTN call.

rgds
benjk


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