> > Matt wrote: > > On 1/12/06, Tomislav Parcina <[EMAIL PROTECTED]> wrote: > >> In article > <[EMAIL PROTECTED]>, > >> [EMAIL PROTECTED] 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? >
I've been thinking along the same lines. BlackBox in Australia claimed they could build me a device which would route BRI and PRI lines via mechanical relays, and could be driven by a very simple heartbeat failover circuit. But such a device wouldn't be 'A-Tick' certified which means it would be illegal to connect it to the phone network in Australia. I've since been thinking that the best way to accomplish this would actually be a TDMoE PRI device, which would take the PRI signalling in one side and send TDMoE out the other. Software heartbeat and failover would decide which Asterisk box talked to it. You then have the TDMoE PRI device as the single point of failure, but I believe such a device has a much longer MTBF than a server, and in any case if you came up with a relay box (or ISDNGuard for that matter) you would still have that as the single point of failure anyway. Can anyone recommend a PRI-to-TDMoE device? Does such a thing exist? James _______________________________________________ --Bandwidth and Colocation provided by Easynews.com -- Asterisk-Users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
