What I can see is the CIM1 port from mitel controller connect to ASU II unit through CIM port and at the back got the card ONSP 24 ports that provide 8 analogue lines for faxes, polycom teleconference unit in meeting room
Obviously we cannot bring those analogue lines into our data centre
So you have 8 analogue lines.
You have a combination of options to choose from:
Build a new vMCD on a server in your datacentre, leave the MCD and ASU in the wiring closet, then cluster the two controllers together.
Move the MCD to the data centre, or replace it with a vMCD, get rid of the ASU and then address the analogue devices:
- faxes - find an alternative fax answer point (Mitel NuPoint could do it, or an outsourced service) or put an ATA in the wiring closet, patch the faxes to it, and register them through the ATA as SIP endpoints on the controller
- conference units - replace them with SIP-based units (The Mitel UC360 doesn't have the wireless option that Polycom's might have though) or patch the Polycoms to an ATA and then register them as SIP based endpoints through the ATA.