[Asterisk-Users] Re: regexten

[Tony Mountifield]

In article <645FEC31A18FE54A8721500CDD55A7B602C1538F at mail.oneeighty.com>,
Douglas Garstang <dgarstang at oneeighty.com> wrote:
> A few days ago I didn't realise that the phones only registered to one
> Asterisk box. If I did, I wouldn't have spent hours today trying to
> get something working.

I would have thought that it was a function of the phone how many
servers it could register with, not a limitation of Asterisk.

There are phones that can have more than one "presence" (line). I have
never played with one, but I wonder if it is possible to get one to
register as the same extensions number on two different servers.

> Is this really the best pure Asterisk HA solution that's out there
> right now? I think it needs a little work.

I've been watching your trials and tribulations, and I wonder how often
you are expecting an Asterisk box to go down? I have some Asterisk boxes
and other Linux boxes with 200-300 days uptime.

If you have your phones register on a 2-min interval, then provided
Asterisk keeps running for (2min / 0.001%) = 139 days or more, then
you have "five-nines" (99.999%) availability.

And don't forget that if the phones re-register at 2-min intervals
randomly spread, the AVERAGE downtime after a failure would only be one
minute.

It then becomes a question of whether it is cost-effective to strive for
even better than that.

Cheers
Tony
-- 
Tony Mountifield
Work: tony at softins.co.uk - http://www.softins.co.uk
Play: tony at mountifield.org - http://tony.mountifield.org