up is the upside and the downside to using G729?
I know you have to pay to use it, but what I would like to know is if the money is worth the benefits, or is it just a waste of time to setup and use?
 
G729a
Submitted by rpotthoff on Wed, 06/25/2008 - 4:19pm.
More info
Wed, 06/25/2008 - 5:00pm
I will answer you with as much detail as your question.
It depends....
What is the environment? Are you bandwidth constrained? Why type of trunks?
Scott
--
Scott
aka "Skyking"
 
The environment is small at
Thu, 06/26/2008 - 8:38am
The environment is small at most 5 users, Bandwidth is 3mbs DSL and all trunks are SIP.
I just what to here from you guys as to what you think of G729 to find out if it is worth even messing with. (large or small systems).
I have been reading a lot about it, some good and some bad, now I want to here from you guys, I trust in the knowledge that some of you bring here.
My tb system is up and running now without any issues that I can find.
 
Hi,
it depend what endpoint
Thu, 06/26/2008 - 9:48am
Hi,
it depend what endpoint you are using, the most of them have a g729 already inside and you can use pass-trough so you do not need to buy a g729 codec to use it with your voipcarrier, if you need to transcode your calls (endpoint do not have g729 and your voipcarrier accept only g729) you need to buy the codec.
If you don't have problem with the quality of your calls right now, let it like it is.
Regards,
Alfred
 
If you have 3mbps
Thu, 06/26/2008 - 7:51pm
If you have 3mbps asynchronous then that is more then enough to have 5 ulaw connections..
If you are using a TDM card there is no reason to use a compression codec unless your extensions are in remote locations.
If you are using VoIP trunks and are trying to minimize your bandwidth then you could save some.. But 5 channels isn't too much.
 
Quote:
Thu, 06/26/2008 - 8:22pm
Quote:
If you have 3mbps asynchronous then that is more then enough to have 5 ulaw connections..
First of all it's asymmetric not asynchronous. Second, 5 concurrent ulaw calls consume 400k of bandwidth. If the facility is 3/384k in a best case situation the user is out of bandwidth.
You have to be very conservative with "best effort" circuits. Depending on the MTU and PPPoE or DOCSIS options your effective upload could be as low as 50% of the advertised bandwidth.
Folks are getting used to the sound of low bit rate CODEC's on digital cellular. g.729 can me quite tolerable if the environment is right for the cost savings.
At the other end of the spectrum we had the opportunity a few months ago to play with the other end of the spectrum, point to point calls on a new Polycom with HD voice, it was remarkable.
Scott
--
Scott
aka "Skyking"
 
G729 pass threw
Fri, 06/27/2008 - 7:05am
Hi zakotel
You mentioned above that you can use g729 in pass threw if your end points support it. Could you point me to a howto or something.
Thanks,
Don
 
Then is their away to
Sun, 06/29/2008 - 7:33am
Then is their away to improve voice quality and still use as little BW as possible?
 
a good point to
Mon, 06/30/2008 - 7:11am
a good point to start:
http://www.voip-info.org/wiki/index.php?page=Asterisk+G.729+pass-...
Regards,
Alfred
 
Member Since:
2006-12-19