Use status off-pbx-telephone station to see the service state and connected ports of an Extended Access (off-PBX and on-PBX) station.
Note:
The on-PBX station support only applies to One-X application types.
Extended Access applications include:
Extension to Cellular
Cellular Service Provider (CSP)
Session Initiation Protocol (SIP)
Seamless Converged Communications Across Network (SCCAN)
Avaya One-X® Client Enablement Services (Avaya One-X® CES)