I think this is what you're looking for:
This feature distributes the connections for analog guest room extensions across several elements, and centralizes all processing on a single IP node in a hospitality environment.
The implementation requires a single IP controller to function as the Hospitality ICP node and one or more analog controllers (Analog Services Unit, Embedded Analog, or AX Controller) to provide connectivity for the analog devices. The Hospitality ICP node handles the processing and management tasks, as it hosts the hotel and motel features, reports, PMS, GSA, and attendant consoles. It also hosts the guest rooms, either directly, as local extensions on the IP controller, or indirectly, as Suite External Hot Desk Users (Suite EHDUs) on one of the analog controllers. To create a Suite EHDU, it is necessary to program the analog room extensions as external hot desk users (EHDUs) and then group them within a suite. The analog extensions, which are typically connected to different controllers, must then be programmed with suite pilot number. Programming instructions are provided below.
From SYSADMIN 8.0
I suppose you're entitled to your opinion, I'm just not going to suppose very hard.