[Asterisk-Users] Audio Quality over LAN very bad

2005-01-31 Thread Nic le Roux



Hi 
All,

I'm running Asterisk 
on the following

vendor_id : GenuineIntelmodel 
name : Celeron (Coppermine)cpu 
MHz : 668.202cache 
size : 128 KB

with 192 MB Ram

Audio coming from 
Asterisk (the demo ) is excellent when using a SIP phone on the LAN to 
Asterisk,
and when dialling in 
from outside via ISDN to Asterisk.

However, when 
connecting from SIP phone to SIP phone (across LAN) and dialling from externally 
to SIPwhich is on the local LAN
it is very choppy 
and one can barely make out the other party.
I'm using an Eicon 
Diva 2-m card and 100mb network all round.

What could be the 
cause as I believe bandwidth is ruled out.


Thanks and 
regards
Nic



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RE: [Asterisk-Users] Audio Quality over LAN very bad

2005-01-31 Thread Chamberland-Larose, Guillaume



Maybe you're transcoding on the server with cpu intensive 
codecs? That would be the first thing I'd look at. Try using G.711 
(ulaw)on both SIP phones and remove reinvite=no and canreinvite=no from 
your phone declarations in sip.conf.

Hope that helps.

Guills

  
  
  From: Nic le Roux [mailto:[EMAIL PROTECTED] 
  Sent: Monday, January 31, 2005 7:01 AMTo: 
  asterisk-users@lists.digium.comSubject: [Asterisk-Users] Audio 
  Quality over LAN very bad
  
  Hi 
  All,
  
  I'm running 
  Asterisk on the following
  
  vendor_id : GenuineIntelmodel 
  name : Celeron (Coppermine)cpu 
  MHz : 668.202cache 
  size : 128 KB
  
  with 192 MB Ram
  
  Audio coming from 
  Asterisk (the demo ) is excellent when using a SIP phone on the LAN to 
  Asterisk,
  and when dialling 
  in from outside via ISDN to Asterisk.
  
  However, when 
  connecting from SIP phone to SIP phone (across LAN) and dialling from 
  externally to SIPwhich is on the local LAN
  it is very choppy 
  and one can barely make out the other party.
  I'm using an Eicon 
  Diva 2-m card and 100mb network all round.
  
  What could be the 
  cause as I believe bandwidth is ruled out.
  
  
  Thanks and 
  regards
  Nic
  
  
  
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RE: [Asterisk-Users] Audio Quality over LAN very bad

2005-01-31 Thread Nic le Roux



Thanks for the reply,

It was on GSM, Ive changed to ulaw last 
night,
It did make a differance but I'd say its still not as good 
in quality as the recorded messages being played back.

What is the suggested or should I say, "Best Practise" when 
it comes to audio codecs used on asterisk ?


  
  
  From: [EMAIL PROTECTED] 
  [mailto:[EMAIL PROTECTED] On Behalf Of 
  Chamberland-Larose, GuillaumeSent: 01 February 2005 03:07 
  AMTo: Asterisk Users Mailing List - Non-Commercial 
  DiscussionSubject: RE: [Asterisk-Users] Audio Quality over LAN very 
  bad
  
  Maybe you're transcoding on the server with cpu intensive 
  codecs? That would be the first thing I'd look at. Try using G.711 
  (ulaw)on both SIP phones and remove reinvite=no and canreinvite=no from 
  your phone declarations in sip.conf.
  
  Hope that helps.
  
  Guills
  


From: Nic le Roux 
[mailto:[EMAIL PROTECTED] Sent: Monday, January 31, 2005 7:01 
AMTo: asterisk-users@lists.digium.comSubject: 
    [Asterisk-Users] Audio Quality over LAN very bad

Hi 
All,

I'm running 
Asterisk on the following

vendor_id : GenuineIntelmodel 
name : Celeron (Coppermine)cpu 
MHz : 668.202cache 
size : 128 KB

with 192 MB Ram

Audio coming 
from Asterisk (the demo ) is excellent when using a SIP phone on the LAN to 
Asterisk,
and when 
dialling in from outside via ISDN to Asterisk.

However, when 
connecting from SIP phone to SIP phone (across LAN) and dialling from 
externally to SIPwhich is on the local LAN
it is very 
choppy and one can barely make out the other party.
I'm using an 
Eicon Diva 2-m card and 100mb network all round.

What could be 
the cause as I believe bandwidth is ruled out.


Thanks and 
regards
Nic



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RE: [Asterisk-Users] Audio Quality over LAN very bad

2005-01-31 Thread Radovan.Mihalik











You should check also if
your linux is using swap (cmd free)

Probably it will becouse
of 192M RAM  than the speed of harddisk

Is in question too 






-Original Message-
From:
[EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Chamberland-Larose, Guillaume
Sent: Tuesday, February 01, 2005
2:07 AM
To: Asterisk Users Mailing List -
Non-Commercial Discussion
Subject: RE: [Asterisk-Users]
Audio Quality over LAN very bad



Maybe
you're transcoding on the server with cpu intensive codecs? That would be the
first thing I'd look at. Try using G.711 (ulaw)on both SIP phones and
remove reinvite=no and canreinvite=no from your phone declarations in sip.conf.



Hope
that helps.



Guills











From: Nic le
Roux [mailto:[EMAIL PROTECTED] 
Sent: Monday, January 31, 2005
7:01 AM
To:
asterisk-users@lists.digium.com
Subject: [Asterisk-Users] Audio
Quality over LAN very bad



Hi All,











I'm running Asterisk on the
following











vendor_id
: GenuineIntel
model name : Celeron (Coppermine)
cpu MHz : 668.202
cache size : 128 KB











with 192 MB Ram











Audio coming from Asterisk (the demo
) is excellent when using a SIP phone on the LAN to Asterisk,





and when dialling in from outside
via ISDN to Asterisk.











However, when connecting from SIP phone
to SIP phone (across LAN) and dialling from externally to SIPwhich is on
the local LAN





it is very choppy and one can barely
make out the other party.





I'm using an Eicon Diva 2-m card and
100mb network all round.











What could be the cause as I believe
bandwidth is ruled out.

















Thanks and regards





Nic




























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