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

[jan.sarin at securia.se]

Phones are not behind NAT. 
 
Every client is on the same internal network as the asterisk pbx (nothing is sent through the internet). It's not the network since I tested this by calling asterisk from an outside phone (cell) and let asterisk play a message for me. Same "cutting" and "chopping" when many SIP-clients where active in a call at the same time.
 
Computer RAM is 2 gb.
 
If the E1 is channelized or not I don't actually know. How would I know this and why would it affect the call quality when many people are in a call at the same time (same lines work fine with an Ericsson BusinessPhone Exchange)?
 
Thanks!
 
Regards,
Jan

________________________________

Från: asterisk-users-bounces at lists.digium.com [mailto:asterisk-users-bounces at lists.digium.com] För broadbandvoice at comcast.net
Skickat: den 4 juli 2006 15:55
Till: Asterisk Users Mailing List - Non-Commercial Discussion
Ämne: Re: SV: [Asterisk-Users] Running 40 active calls (too much för CPU?)


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 < BR>> ; 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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