SV: [Asterisk-Users] Running 40 active calls (too much för CPU?)

broadbandvoice at comcast.net broadbandvoice at comcast.net
Tue Jul 4 06:54:36 MST 2006


Are the phones behind a NAT? What is the processory memory size? Are the E1 channelized?

-------------- Original message -------------- 
From: <jan.sarin at securia.se> 

> I should add that thease 25 calls where SIP (internal) to Zap (PSTN) calls. 
> 
> Mvh, 
> Jan 
> 
> -----Ursprungligt meddelande----- 
> Från: asterisk-users-bounces at lists.digium.com 
> [mailto:asterisk-users-bounces at lists.digium.com] För jan.sarin at securia.se 
> Skickat: den 4 juli 2006 09:41 
> Till: asterisk-users at lists.digium.com 
> Ämne: [Asterisk-Users] Running 40 active calls (too much för CPU?) 
> 
> Hi, 
> 
> We're running asterisk 1.2.1 on a Dell PowerEdge 600SC (2.4 ghz) server 
> connected to the PSTN through two E1 pipes to a TE405P. This has been running 
> just fine for several months... 
> 
> But yesturday we connected a large number of softphone SIP clients (50) and 25 
> of these where running simultaneous active calls on the INTERNAL ethernet using 
> g711 (ulaw). We noticed that the sound was jagged just as if the CPU couldn't 
> handle 25 calls (?!). 
> 
> I checked the CPU load and it never went over 55 % and memusage was low too. 
> 
> Does anyone know what could be the problem? Are there some kind of CPU spikes 
> that make these cuts in the audio? If so, why on earth can't a 2,4 ghz processor 
> handle 25 low-quality audio "tracks" on asterisk when I can run +50 cd-quality 
> audio tracks when producing music? 
> 
> ANY help and/or comments would be appreciated since this is quite an acute 
> problem. 
> 
> Regards, 
> Jan 
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