Looking for redundancy and high availability in a phone system 1

[jsun1]

Hello,
We run an emergency disatch center. I am looking to upgrade our phone system. Does any one know who makes a good system with redundant components that is basically "self-healing" should a card, processor board, port etc fail?
I've heard the Definity is a good system, that is why I'm in this forum. Any suggestions? Also, I need a good place to purchase from. Any help would be greatly appreciated!!

 

[netcon1]

Duplication
Duplication is a strategy to create fully redundant systems. Duplication minimizes single
failure points that can interrupt call processing. Four system duplication options are
available:
n Standard reliability--The standard reliability option does not duplicate the
Tone-Clock(s), the Control Carrier, or any inter-PN connectivity. This is the only
reliability configuration option available for the csi model.
n High reliability--duplicates the hardware that is associated with the SPE. The
Control Carrier is duplicated, which provides duplicate SPEs and Tone-Clocks.
Inter-PN connectivity and EPN Tone-Clocks are not duplicated. The strategy is to
duplicate items that are associated with the SPE so that a single fault will not cause
the loss of the SPE. High reliability is available with si and r models.
n Critical reliability--(not available with Category B) is available with si and r models
and requires the full duplication of the SPE, inter-PN connectivity, and the
Tone-Clocks.
n ATM Network Duplication--(not available with Category B) requires full duplication
of the inter-PN connectivity and the Tone-Clocks.
As duplication increases, the maximum number of port carriers and port circuit packs per
cabinet decreases.

Netcon1

For more information contact a company called Branttel.com

they are international and on the net.

 

[netcon1]

In short, the Definity can do what you need it to do, and with Avaya/business partner 24-7 support, you can achieve full redundancy and reliability for the system you require.

I have worked with these switches for many years and have found the "mean time failure" close to non-existant.

Netcon1

 

[Bobg1]

Like netcon1 says, failures are close to non existent.
The switch at my location has been up for the last 6 years.
I think it went down once due to an extended power failure.
I would assume in your critical application you would have a backup generator, not just a ups.

 

[vaoldschl]

I agree as well, the only system I've worked with that was as reliable as the Definity was a Fujitsu 9600XL.