I just got a call from an existing IP OFFICE client. System is down after an extended power failure..

On the remote, the VM box was active and I can start the Manager software but it cannot connect to the control unit.

I can't even PING the control unit address.

Onsite, I rechecked the wiring is still intact and there are some unused red station ports showing.

I reset the power. Then pulled both station cards then replaced 1 card at a time, killing the power in between swaps..

I got nothing.

At this point, I believe I need a new control unit but although I've worked on this system for years I've never done a fresh install and unfamiliar with the licensing issues.

It is presently running 9.1.600

Can this s be as easy as:
replace control unit,
move both cards to the new carrier
swap the SD card
reconnect the cables
power up and restore the last configuration file? (I have one from 11/30/2024 YAY! )

Or will there be a licensing issue? I remember needing to upgrade a system to 9.1 years ago but not sure THIS was the place.

Also I would like a recommendation of where I can purchase a control unit that has good support?

Thanks for your help!