[asterisk-users] SIP Listen Multiple Ports

[Michelle Dupuis]

Could you explain this one a bit more...

You run openSER on the same box as asterisk, and have multiple such boxes,
with the purpose of failover?  But if a box goes down with openser on it,
then there is no forwarding.  (And most phones can only reg with peer). If
you move openSER to another independent box, then you have a single point of
failure.

I suspect I'm not understanding something correctly.... 

-----Original Message-----
From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Steve Edwards
Sent: Monday, January 04, 2010 2:34 PM
To: Asterisk Users List
Cc: asterisk.org at sedwards.com
Subject: Re: [asterisk-users] SIP Listen Multiple Ports

>> 1 jan 2010 kl. 20.04 skrev Shariq Khan:

>>>> I m using Asterisk 1.4 , can i bind multiple ports to SIP at a time

On Sun, 3 Jan 2010, Steve Edwards wrote:

>> You can configure OpenSER/Kamailio/OpenSIPS to listen to multiple 
>> addresses and ports and "forward" to Asterisk on the same or 
>> different boxes.
>>
>> I like to configure systems with OpenSER running on each box, 
>> forwarding calls to Asterisk across the same set of boxes for 
>> redundancy, load balancing, and maintenance (being able to take an 
>> instance of Asterisk or an entire box out of production).

On Mon, 4 Jan 2010, Vikram Ragukumar wrote:

> Would it be more efficient to use libnetfilter_queue() to listen to 
> specific addresses / ports and forward to Asterisk?

Yes, but the number of SIP control messages are usually insignificant
compared to all the RTP packets.

> If so, what would I be losing in not letting OpenSER do it?

All the goodness that OpenSER brings to the table. I just "scratched the
surface" above with all the features of OpenSER/Kamailio/OpenSIPS.

--
Thanks in advance,
-------------------------------------------------------------------------
Steve Edwards       sedwards at sedwards.com      Voice: +1-760-468-3867 PST
Newline                                              Fax: +1-760-731-3000

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