Displaying 20 results from an estimated 10000 matches similar to: "speex, ilbc and g729 codecs, GSM with IAX"
2006 Jan 13
2
ILBC to G711 transcoding experince ?
Hello All,
Anyone here has experience of accepting a ilbc call and sending it on g711 or g729
I am having problem in VOICE , call goes though but there is no voice.
Senario:
Call is coming in from Machine A to Machine B, sending to Machine C
Machine B is an asterisk box, transcoding it from IBLC to G711 and g729.
Problem:
Voice is not appearing on the sip user sitting on machine A
Already
2008 Jan 29
1
speex, ilbc and g729 codecs
Hi List;
Anyone tried to use speex, ilbc and g729 and come back
with a preferred one in the quality?
Regards
Bilal
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2006 Feb 20
1
g729 quality at GSM bitrates
Greetings all,
I'm trying to improve the codec selection on a few of the asterisk boxes we
have to keep the g729 licences free for calls from ATAs that don't support
anything apart from g711 and g729. GSM seems to offer noticably inferior
call quality (at least when using a softphone + decent headphones), but it's
about where I want the bitrate to be.
I know there are lots of Speex
2008 Jan 02
7
Two Asterisks behind NAT and need to link them using IAX trunk
Hi List;
I heared that IAX is good for NATing issues, but I do
not know if it can help me in that senario:
I have two Asterisks machines in different sites and
both are behind NAT (both have private IP address), I
need to link these two asterisks with IAX trunk (if it
help really in such senario), but I do not know if it
will work without doing special routing settings on
the router (like
2004 Jul 27
2
g729 + GSM + g723
Folks!
We have purchased G729 and have been testing the codec on mUltiple Gateways. Here is what we have found.
Here is the config I have used:
-------------------------------
Asterisk Server On Dual Pentium Xeons with 6GB of RAM, running on Fedora Core 2
User1 is in USA on Broadband Cable
User2 is in India on 64Kbps ISDN Line
User1 using SIPURA SPA 2000
user2 using Xten professsional(X-pro)
2008 Mar 05
1
g729 to GSM translator is needed for voicemail to work fine, how?
Hi All;
I need a help as the voicemail need GSM codec while I
am using G729 for the call, why Asterisk does not do
codec translation from G729 to GSM, it does not
support?
Any need for settings, what I am missing?
Regards
Bilal
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2007 Sep 26
2
My G729 problem re-visited
Ok, I built a test system to duplicate my problem and provide myself
a platform that I can mess around with to try and break any features.
My problem is G729 pass-through from a gateway to a phone. I think
I even have transcoding working, which makes me more confused on
what's wrong with my pass-through. It must be a configuration issue.
The basics...
*CLI> core show version
Asterisk
2008 Mar 27
1
ADPCM codec and IAXy device
Hi All;
I need to buy one IAXy device, but I discovered that
it supports only g711 and ADPCM codec, so I was wonder
that it does not support g729 or GSM?!
Anyway, what is that ADPCM and how much it consumes
bandwitdh? Also, asterisk support such codec? What its
name in the configuration?
Any advise?
Regards
Bilal
2007 Jul 03
5
Determining the used codec for the IP Trunk (SIP Trunk)
Hi List;
Where I determine the codec to be used for the SIP
Trunk (between Asterik and another SIP softswitch)?
Regards
Bilal
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2008 Jan 14
7
GSM SIM Cards and Digium, or GSM SIM Adaptor
Hi List;
Is there an Digium cards support GSM SIM cards so we
can fix an SIM card to be used for calls within
mobiles as it is less rate?
Or I have to use an FXS to SIM adaptor? If yes, then
anyone advise a models and prices?
Regards
Bilal
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2008 Mar 27
2
IAXy device
Hi All;
I have been chocked just when I saw some posts talking
about how much the IAXy is bad :) -
So I would like to ask, did any one try it later and
wether it is good or not? I am asking this because I
need to use it as it is NAT Transparent (as I read
also, and I did not try it to see how much it is
transparent).
What about codec? Why it is only support g711 and does
not support compressed
2009 Oct 20
1
Is there a way to force a codec on an incoming sip uri call?
Hello,
I'd like to implement some public sip uri's that poeple can call into
and get an echo test. Is there a way to force a codec so that users
can test various codecs?
Something like:
echo-test at example.com (negotiates whatever codec, is there a way to
figure out what codec was negotiated and tell the user)
echo-test-g711 at example.com (forces g711)
echo-test-g729 at
2004 May 14
2
GSM v iLBC for low bandwidth connections
Hi All,
I've been playing with GSM and iLBC over low bandwidth connections
(central Asterisk box with 2mbps, to ADSL users on 512/256) and both
seem to perform well. Based upon what I've read in the archives and
at voip-info.org iLBC should perform a little better if packets are
lost, than compared to GSM. Do you find this to be true in practice,
or is GSM just as robust?
Whilst
2004 Jan 06
4
Pls confirm
Can someone on the list confirm if Asterisk can do g723 or g729? when connecting to provider? or it is only supporting g711?
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2005 May 27
3
G729 vs. gsm
I installed G729 from Diguim and I was expecting the
sound quality on my i686 machine to be better than
gsm. Compared to gsm, G729 sounds closer and a little
robotic. Is this what is supposed to be or am I
missing something?
I am interested in G729 because the internet in my
country is very expensive and I want to save every bit
possible. I want to use G729 because it takes less
bandwidth for
2007 Apr 28
7
Two Connected Servers Sound Quailty
Ok this is my first post and I will try to keep it short.
I have searched everywhere and haven't found an answer to my question
I have two Trixbox servers that are connected over the Internet via an IAX2
connection. We are experiencing very poor sound quality. I have tried many
different codecs gsm, ilbc, g729, g711 and all seem to have the same
problem. (All though g729 seems to work the
2004 Aug 02
1
G729 or GSM
Dear all.
I recently subscribed to a VoIP provider through IAX.
The require to connect with either G729 or GSM, I chose G729 based on
their recommendation.
The service works very well, however ... people mentions how distorted
our voice sounds. We have plenty of bandwidth available so I don't
think it comes from our side.
What it means is that it comes from two things:
1-G729 gives bad
2007 Sep 25
5
Do I need to run #modprobe zaptel for Digium
Hi List;
If I am configuring Diguim Analoge card, then I need
to run #modprobe wctdm, but the question why I need to
run #modprobe zaptel also?
What #modprobe zaptel does a things that #modprobe
wctdm does not do?
Any help?
Regards
Bilal
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2009 Apr 05
2
what can we do with lost voice packet on a congestioned VPN?
Hi to all
in a scenario where:
- the bandwith is shared with other traffic (HTTP,VPN,ecc)
- the PBX is on a remote VPN peer
- due to many reasons Qos is not usable
There is a IAX trunk between 2 Asterisk 1.4 i've tried different
codecs (ulaw,alaw,gsm) but the main problem still remain the same: too
many voice packet get lost.
The main problem is surely on the network, but the strange thing