Hello Michael,
Sorry for the late reply. The 17kbps are for the G723.1 at 6.3kbps. The
additional overhead which increases the bandwidth usage etc depends on
the codec. It's not a fixed overhead in bandwidth for all codecs.
You can find a few free codec/bandwidth calculators at:
Hi,
I like to know why iLBC and GSM generate a 40-50kbps bandwidth
Is very high, if compared with your calculations for other codecs(G723.1
/ 17kbps and G729 / 24 Kbps).
Alexandre
Kanuri, Seshu (Company IT) wrote:
/SNIP/
Some corrections are needed: 6.3kbps of G723.1 will become around
For real life bandwidth tests : check the ppt on www.astertest.com
Zoa.
alexandre::aldeia digital wrote:
Hi,
I like to know why iLBC and GSM generate a 40-50kbps bandwidth
Is very high, if compared with your calculations for other
codecs(G723.1 / 17kbps and G729 / 24 Kbps).
Alexandre
Kanuri,
On 19/11/2004 21:13 alexandre::aldeia digital said the following:
I like to know why iLBC and GSM generate a 40-50kbps bandwidth
Is very high, if compared with your calculations for other codecs(G723.1
/ 17kbps and G729 / 24 Kbps).
the other codecs have better compression, but there's a
Hi Hammoud,
It all depends on the codec that you are using.
Best case scenario is with G723 codec 6.3Kbps per channel * 20, around 126K
without the overhead. But you problably won't be able to use this codec unless
you are in passthru mode (license is pretty expensive).
Using g729 you will
As an additional info, G723 is like 1700 bytes per second, GSM is like
4600-4800 bytes per second as viewed by netstat - those numbers are with
ip overhead. I've been able to use a dialup as a link to get 2
simultaneous G723-based sip hardphones to * server.
kido noagbodji wrote:
Hi Hammoud,
kido noagbodji wrote:
Hi Hammoud,
It all depends on the codec that you are using. Best case scenario is
with G723 codec 6.3Kbps per channel * 20, around 126K without the
overhead. But you problably won't be able to use this codec unless you
are in passthru mode (license is pretty expensive).
/SNIP/
Some corrections are needed: 6.3kbps of G723.1 will become around 17kbps
on the IP level without silence suppression because of the additional
overhead imposed by protocols like RTP, IP, etc . If you add the
Ethernet (or WAN protocol overhead) this will increase even more
(although
Thanks for the input ...
Kido
- Original Message -
From: Kanuri, Seshu (Company IT) [EMAIL PROTECTED]
To: Asterisk Users Mailing List - Non-Commercial Discussion
[EMAIL PROTECTED]
Sent: Thursday, November 18, 2004 3:47 PM
Subject: RE: [Asterisk-Users] internet bandwidth
/SNIP/
Some
Hi!
Vlasis Hatzistavrou schrieb:
6.3kbps of G723.1 will become around 17kbps
on the IP level without silence suppression because of the additional
overhead imposed by protocols like RTP, IP, etc .
These 17kbps are they independent from codec? That means a A-LAW with
64kbps has got 64+17=81kbps?
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