[Asterisk-Users] Re: Failover Device?

[Rich Adamson]

Matt wrote:
> On 1/12/06, Tomislav Parcina <tparcina at lama.hr> wrote:
>> In article <c11d02530601110543w56a92b98n5df53ddce0bdbdd at mail.gmail.com>,
>> mhoppes at gmail.com says...
>>> First,
>>> Something seems to be wrong with the list.  I'm not the only person
>>> who has expressed seeing their messages either arrive late, or not at
>>> all.
>> I'm sure that I'm not the only person that has notice that there is lots
>> of people that start new thread by replaying to old message. That way
>> neither them, or lots of other people, sees that mail as new therad.
> 
> Yeah I've noticed that too.. I don't do that though.
> 
> Ok on to the question at hand.  I am trying to fail over asterisk.  I
> have PRI redundancy.  What I need, however, is someway to transfer the
> PRI from asterisk box A to asterisk box B if asterisk box A fails.  So
> while, yes, I can build a second asterisk box and use SER, or DNS or
> whatever to point my sip devices to it... the question is how do I get
> the PRIs to know which box to route to?

How about a relay, driven by something attached to a pin of the serial 
(or parallel) port(s) of one/both servers?