IPT - PBX Redundancy

[netmotaman]

Canyone tell me - at a new branch site with Nortel IPT how I can ensure the IPT has failover capability back to two main sites PBX's (already IPT enabled with sig servers)?

The branch site has network connections to the two main sites and all other local IP devices, should they not be able to see one site can connect to the other DR site, but I'm told this is not possible with Nortel IPT.

I'm told the following reasons why it cant work ...
a) Nortel do not allow IPT licenses to be registered against another meridian in the event of the first meridian or site failing? So, No allowance for DR ???
b)The Meridian's would not be able to 'know' the branch site by the same numbers? So, I couldn't use phantom config for this ???
c) I'd have to buy a new CS1000B with a new sig server, and even then the failover would not be to the DR meridian, it would out locally via expensive Primary Rate calls? Is this a marketting strategy ???

Any assistance greatly appreciated.

 

[srmega41]

You just pointed out three of the many, many reasons why we chose NOT to use Nortel for VoIP. The above issues reflect a mode of thinking that is tied to a TDM world, not an IP one. I will also say there are many environments that Nortel's VoIP solution works good in, but the above issues remain!

I wish I could provide you with some sliver of hope, but you have seen the issues. I do not think it is a marketing strategy, just being somewhat stuck in an old way of thinking.

I will not make any rash suggestions in this forum, simply because I am not sure it belongs, but I would recommend broadening your search for VoIP. There are many ways to do this, and some of them will inter-operate with your TDM Nortel solution quite well.

Hope this helps,

Scott M.

 

[teekow]

Nortel has a campus redundancy feature that will allow branch users to be associated with two main offices. However, I believe you still need to duplicate the ISMs that are used at each main site. Also, you still need an MG1000B at the branch for local PSTN connectivity and you need to have the TNs built in all 3 PBXs. Definitely not as clean as other available IPT branch office solutions.

Hope this helps
Rob