I've installed and supported Nortel key systems since DR 1.0, and I know enough to be dangerous with the BCM 400 Element Manager.

But, we all know what happened with Nortel. I received a call from an old customer that needs to upgrade from their Nortel CICS. They need more sets, voicemail, etc.

I figure this would be a good time to jump to a Nortel replacement system, like the Avaya IP Office. I understand there is a version that is all Avaya, and another that is Nortel compatable.

Should I cut the cord and just go with the Avaya IP Office? Or is it worth it to start slowly with the other? Are M7310 sets compatable with either system? How about T7316e sets?

Is Avaya similar enough to Nortel or BCM that I wouldn't have trouble making it work? Or is formal training a given?

Thanks for your input.
Jim