>----- Original Message ----
>From: SIP <[EMAIL PROTECTED]>
>To: Asterisk Users Mailing List - Non-Commercial Discussion <[EMAIL PROTECTED]>
>Sent: Wednesday, September 26, 2007 4:31:08 AM
>Subject: Re: [asterisk-users] Asterisk Redundancy
>
>Per Jessen wrote:
>> Atis Lezdins wrote:
>>
>>
>>> 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?
>>>
>>
>> Perhaps investigate/diagnose the craches? Software instability is not
>> solved with a high-availability solution. IMHO.
>>
>>
>> /Per Jessen, Zürich
>>
>>
>No. It's not. But there still exists the possibility even in a
>relatively stable situation that the software could crash or that
>hardware could fail. It's best, when planning a highly-available
>solution, to plan for the unforeseen and not assume you can avoid all
>mishaps. Let's assume, for the sake of argument, that the software will
>NEVER fail. Hardware still might, and that would still mean a lost call
>unless there's a way to switch running calls over to a new server
>seamlessly.
>
>Are there such ways? IP calls are especially troublesome in that regard.
Don't set your goals too high. I've worked for a few companies with Asterisk
now and just having an architecture that can recover within a few seconds and
process new calls almost seamlessly is a workable goal. Having an architecture
that can seamlessly fail over and keep calls up is kinda like the whole grail
of redundancy with Asterisk. Hint... you might be able to do it with SIP
reinvites...
Doug.
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