asterisk users - Oct 2003 - H.323 and G729: Another sad tale

I've done some reviewing of the archives for G729 and H323 
experiences.  The landscape of that query isn't pretty - lots of 
pleas for help, and nor do I see too many "answers."  I have a 
pending bid that requires some data before I can implement * on this 
particular solution.

My question is perhaps a slightly differently worded one than has 
been asked before, but it may be the case that it is the same 
question as I have seen already posted (with no 'definitive' answer):

"Can g729 calls of type g729r8 or g729br8 from a Cisco AS5300 be 
terminated on Asterisk systems and sent out Zap interfaces?"

If the answer is "Yes," then are there any specific patches I will 
need?  Which of the two H323 drivers works?  Both?  Of course, I 
assume that the G729 licenses from Digium are required for each 
active channel.

If the answer is "No," what is your experience with attempts with 
these codecs?  Are there any workarounds that you have implemented?

JT

John Todd wrote:
>
> I've done some reviewing of the archives for G729 and H323 
> experiences.  The landscape of that query isn't pretty - lots of pleas 
> for help, and nor do I see too many "answers."  I have a pending
bid
> that requires some data before I can implement * on this particular 
> solution.
>
> My question is perhaps a slightly differently worded one than has been 
> asked before, but it may be the case that it is the same question as I 
> have seen already posted (with no 'definitive' answer):
>
> "Can g729 calls of type g729r8 or g729br8 from a Cisco AS5300 be 
> terminated on Asterisk systems and sent out Zap interfaces?"

Yes, g729r8
> If the answer is "Yes," then are there any specific patches I
will
> need?  Which of the two H323 drivers works?  Both?  Of course, I 
> assume that the G729 licenses from Digium are required for each active 
> channel.

Others seem to have massive issues with chan_h323 and G.729, but i've 
dealt a dozen or so 5300s of which I haven't had any trouble whatsoever, 
with nothing other than the code that is currently in the cvs.  However, 
I have only terminated calls from Asterisk to the 5300, never from the 
5300 to Asterisk.

If Asterisk is going to be encoding G.729, yes you will need licenses 
from Digium.


Jeremy McNamara


P.S. I'm biased and cannot comment about that other driver

Quoting Jeremy McNamara <jj@nufone.net>:
> > "Can g729 calls of type g729r8 or g729br8 from a Cisco AS5300 be 
> > terminated on Asterisk systems and sent out Zap interfaces?"
IMHO as for today No,
For incomig I couldnt even get it working with g711 and ciscos 72xx and as5300.
Calls were dropped from cisco side after two udp packets from cisco sent.
> I have only terminated calls from Asterisk to the 5300, never from the 
> 5300 to Asterisk.
Outgoing calls from * to cisco with g729 from digium works fine.
But I didnt test it with large volume.

regards
izo

Hello,
> "Can g729 calls of type g729r8 or g729br8 from a Cisco AS5300 be
> terminated on Asterisk systems and sent out Zap interfaces?"
A while ago, I only manage to get g729 call works when terminating in Cisco
AS5300 from Asterisk but was unable to terminate call in Asterisk from Cisco
AS53000 using g729.
>
> If the answer is "Yes," then are there any specific patches I
will
> need?  Which of the two H323 drivers works?  Both?  Of course, I
> assume that the G729 licenses from Digium are required for each
> active channel.
not sure about patches, however if you plan to use chan_h323, it is best to
get the CORRECT versions of pwlib and openh323 and follow the exact
installation instructions. One important thing about these libraries with
chan_h323 is DO NOT 'make install' pwlib and openh323

hth

Dear all,

I just fresh CVS the asterisk code, and uncomment the G729 in the Makefile
on asterisk/channels/h323.

I also donwload pwlib and openh323 from nufone.net/downloads, and did
following things:

1. /pwlib, make clean, make both
2. /openh323, make clean, make opt
3. /asteriks/channels/h323, make clean, make install, and it is got error
about no chan_h323.o  exists. and the make install is failed.

any one can help on this.

Thanks,
George Lin