[asterisk-users] Asterisk Redundancy

[Guilherme Loch Waltrick Góes]

A little off topic, but SipX has built in redudancy. if it is so
important to you, you should have a look.

On 9/25/07, Atis Lezdins <atis at iq-labs.net> wrote:
> [snip]
> > http://lists.digium.com/pipermail/asterisk-users/2007-August/195339.html
> > >> could provide you with some answers.
> > >
> > >
> > >Hi,
> > >This seems nice way of sharing settings, however it wouldn't take over
> > >calls in progress. For us, currently the greatest problem is that
> > >whenever Asterisk crashes, calls are lost, and that means - lost
> > >money. Are there any ideas?
> >
> > You might want to take Asterisk out of the media path then. If it crashes,
> > calls will stay up, although your CDR's will be screwed. If screwed CDR's
> > still means lost money... your still screwed!
>
> Nop, i can't stay out of media path, as there are essential features
> depending on it - hell, that's why i need asterisk - transfers,
> chanspy, monitoring.. Of course in case of crash - monitoring and CDR
> can be lost - that would be minor problem comparing to lost calls.
>
> I'm thinking about some mechanism how asterisk could communicate with
> second asterisk and report all state operations made with SIP. So if
> asterisk fails, redundancy asterisk performs IP takeover and
> continues. Unfortunately my SIP knowledge is nearly minimal (as are my
> C skills), and i don't have any ideas how to implement this.
>
> A simplest method could be something like SIP proxy, that sends calls
> to asterisk, but if asterisk stops responding, it plays some message
> and tries to send call to redundancy server - however then problem can
> occur with redundancy server. And this would have some major drawbacks
> - calls wouldn't be matched to corresponding agents in queue.
>
> Hmm, thinking a bit more about topic - maybe redundancy mechanism
> would have enough to keep state of channels, bridges, and
> corresponding dialplan location (assuming that config is identical).
> Too much of duplicating everything would mean that second asterisk
> could have the same crash.
>
> Regards,
> Atis
>
> --
> Atis Lezdins
> VoIP Developer,
> IQ Labs Inc.
> atis at iq-labs.net
> Skype: atis.lezdins
> Cell Phone: +371 28806004
> Work phone: +1 800 7502835
>
> _______________________________________________
>
> Sign up now for AstriCon 2007!  September 25-28th.  http://www.astricon.net/
>
> --Bandwidth and Colocation Provided by http://www.api-digital.com--
>
> asterisk-users mailing list
> To UNSUBSCRIBE or update options visit:
>    http://lists.digium.com/mailman/listinfo/asterisk-users
>


-- 
Guilherme Loch Góes

MSN:glwgoes at gmail.com
(48) 99115299