[asterisk-users] asterisk performance

[Michael Graves]

Your 512k outbound bandwidth will tend to be the defining factor in
call quality here. 

Does your connection only gets used for voip? Or is it shared with
other uses? 

Can you use more compressed codecs? G729 will quadruple you call
capacity.

What sort of QoS and traffic shaping do you use? Note that these are
separate matters, and you need both.

Michael

--Original Message Text---
From: jorain
Date: Thu, 6 Dec 2007 17:47:18 +0800

Hi all, 
 
We are using  
- a dell sc440(Single dual-core intel xeon 3040, 1.86GHz,1066MHz front
size bus 2MB cache) as the asterisk server 
- dell 400sc(Intel P4) as a SER server 
- digium isdn card, TE120P at Asterisk server 
- Bandwidth: 2Mbps/512kbps 
 
All SIP Phones are registered to SER server, and SER will route all
outgoing calls to Asterisk server. My problem is the sound quality goes
down if more than 3 concurent calls to PSTN. 
 
Logically i think our system and bandwidth are more than enough to
handle 3 concurent calls, but as the 4th person use it, the sound
become jerky and a bit delay. So how can we improve the sound quality? 

 
 
Thanks 
 
Regards, 
jorain 
 
 


--
Michael Graves
mgraves<at>mstvp.com
o713-861-4005
c713-201-1262
sip:mjgraves at pixelpower.onsip.com
skype mjgraves
fwd 54245

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