asterisk users - Mar 2008 - How many maximum SIP Registrations can Asterisk Handle

Hi All,

I am new to this community and just subscribed. 

We have Asterisk running in production but I could not find out in documentation
as well as web that how many maximum number of registrations an Asterisk Server
can support. We have it on a 1.4 GHz Processor, 2 GB RAM and 40 GB HDD IBM
Server. Please suggest urgently.

Thanks.

Best Regards,
------------------------------------- 
Abid Saleem Choudhary
Team Lead VoIP Networks
Comcerto Bahrain W.L.L.
Direct: (973) 13301504
Mobile: (973) 36080504
Tel: (973) 13301100, Fax: (973) 13301101
MSN: abid_saleem10 at hotmail.com 
WebSite: http//Comcerto.net
P.O. Box: 311100 Manama, Kingdom of Bahrain
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On Sun, Mar 30, 2008 at 8:31 AM, Abid Saleem Choudhary
<abidsaleem at gmail.com> wrote:
> Hi All,
>
> I am new to this community and just subscribed.
>
> We have Asterisk running in production but I could not find out in
> documentation as well as web that how many maximum number of registrations
> an Asterisk Server can support. We have it on a 1.4 GHz Processor, 2 GB RAM
> and 40 GB HDD IBM Server. Please suggest urgently.
>
Depends a lot on a few factors the ones I can think of off the top of
my head are:

1. The registration interval you use, the smaller the interval the
greater the load but the better at keeping NAT connections open,
2. Whether you use the qualify setting to help with keeping NAT
connections open,
3. Whether you are using realtime or a configuration file.
4. The load from calls,

With a best case scenario the answers to the above questions would be:

1. 3600,
2. No,
3. Configuration file,
4. Minimal

With that set up I'd guess that somewhere between 5,000 and 10,000
registrations would be something your hardware could handle.

However it would be normal that once the number of SIP accounts gets
to a certain point it becomes to painful to configure them via a
config file which means realtime with it's database option comes into
play. At that point you are better off taking the load from
registrations away from Asterisk. Asterisk is not a particularly good
SIP Registrar anyway so putting in something like OpenSER is a
superior option.

Regards,

Greyman.

I'd say several thousands i n normal circumstances, but i would also 
like to recommend not to use asterisk for large scale registrations, its 
better to do those on SER for example, and route the calls through 
asterisk for termination, voicemail, conferencing etc.
It all depends on how fast the reregistration time is set on those end 
devices and how much the registrations will collide in the same small 
interval.

SER doesn't handle audio so even if the registration gets a little 
delayed because a flood arrives, the audio won't suffer.

Zoa

Abid Saleem Choudhary wrote:
> Hi All,
>  
> I am new to this community and just subscribed.
>  
> We have Asterisk running in production but I could not find out in 
> documentation as well as web that how many maximum number of 
> registrations an Asterisk Server can support. We have it on a 1.4 GHz 
> Processor, 2 GB RAM and 40 GB HDD IBM Server. Please suggest urgently.
>  
> Thanks.
>  
> Best Regards,
> -------------------------------------
> Abid Saleem Choudhary
> Team Lead VoIP Networks
> Comcerto Bahrain W.L.L.
> Direct: (973) 13301504
> Mobile: (973) 36080504
> Tel: (973) 13301100, Fax: (973) 13301101
> MSN: abid_saleem10 at hotmail.com <mailto:abid_saleem10 at
hotmail.com>
> WebSite: http//Comcerto.net
> P.O. Box: 311100 Manama, Kingdom of Bahrain
> ------------------------------------------------------------------------
>
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