Hello,
How do I calculate the maximum number of channels the asterisk can handle at one time?
The system is:
Processors 4
Model Intel(R) Xeon(TM) CPU 3.80GHz
CPU Speed 3.8 GHz
Cache Size 2048 KB
thx
 
How to calculate maximum number of conference calls
Submitted by blwegrzyn on Tue, 04/28/2009 - 10:11am.
What is the size of your pipe?
Tue, 04/28/2009 - 10:42am
A lot has to do with the size of your pipe up and down. What speeds do you have for your SIP Trunks, (assuming SIP here)? What Codecs are in use?
John
 
I want to know what is the
Tue, 04/28/2009 - 11:28am
I want to know what is the max channels the asterisk can handle per conference.
Lets assume that sip trunk is unlimited.
I want to know the limit of asterisk meetme.
So I call in into meetme and at some point the quality starts to degrade, but when?
I know is cpu related, but how to calculate it.
I want to build conferencing server and I must know the limit.
 
Assuming all G.711 and local
Tue, 04/28/2009 - 11:31am
Assuming all G.711 and local LAN links, there are a number of success stories in the 100 participant range. Beyond that, you're likely to have a whole different set of issues - including requirements for hosting and participant management that app_meetme doesn't provide.
If you're asking about Asterisk itself's scalability, that's a bit of a different question. The best info is usually found here:
http://www.voip-info.org/wiki/view/Asterisk+dimensioning
From what I've seen, you should conservatively be able to get to 400 or so simultaneous calls on a decently beefy Quad core box, assuming G.711 and canreinvite=no, presuming you have appropriate bandwidth for 64k x whatever is coming across from the PSTN. If you're transcoding, especially G.711 to G.720 or GSM, expect that number to go down by a factor of two. It's still a computationally expensive operation.
HTH,
Josh
 
What about max
Tue, 04/28/2009 - 1:02pm
What about max participants?
We are trying to set specific number of conferences with max participants.
For example:
cfr 1 - 20 participants
cfr 2 - 20 participants
cfr 3 - 5 participants
cfr 4 - 5 participants
cft 5 - 5 participants
cfr 6 - 5 participants
cfr 7 - 10 participants
cfr 8 - 10 participants
cfr 9 - 10 participants
cfr 10 - 10 participants
so total 100 calls
 
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2006-08-21