[Asterisk-Users] PRI & Asterisk Redundancy/Fail-Over

[Peter Brown]

Do you think they would cost much to make them? I'd be keen to get them for 
E1s.

I think they could be sold with an E1PRI card. Especially if VoIP PABX's 
take off .

Peter

At 20:12 27/10/03 -0500, you wrote:
>look for a T1 failover switch.
>
>(cheap as dirt on ebay, mine was $7.50, - yes really, I got the decimal in 
>the right spot, hard to find an empty rackmount box that is cheaper.)
>
>Basically it looks like a Y in the T1. It contains a csu/dsu on each 
>interface. It decodes the t1 signals, and then re-encodes them using its 
>reframer. It looks at the signal enough to know if one of the branches of 
>the Y is in alarm, lost completely, etc. You can specify the criteria when 
>to switch and when to switch back on restoration of original circuit.
>
>These things are actually designed to take dual t1's coming in and select 
>the right one to feed to CPE, but like you I use mine the opposite way 
>around to connect a working set of CPE to the inbound T1.
>
>I use for a data t1, but voice/pri is all the same as far as this thing is 
>concerned, it only looks at the clocking, and alarm, etc., not the actual 
>data contained in the serial stream.
>
>
>
>At 08:02 PM 10/27/2003, you wrote:
>>Hi,
>>
>>I'm trying to put together an * system with extremely high up time.
>>
>>The system as it stands now is 1 dual p4 with raid, redundant power, etc..
>>and a T100P card. I would like to get a second similar or identical box
>>with another T100P card. I have 1 PRI, how do I get the second box to take
>>over communication with the PRI should the first box fail? Of course I'd
>>like this to be done without manually unplugging the PRI from box 1 and
>>plugging it into box 2.
>>
>>Thanks,
>>Justin
>>
>>
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>
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