Ring Voltage Detection: 30+ VRMS (depend on the FXO mode)
Termination: PSTN Lines
Echo Cancellation: Support
Signaling Modes:
Foreign Exchange Office: 2-way connection to PRX or key system trunk.
Foreign Exchange Station Defined Network: provides access to major carrier services.
Private Line Automatic Ringdown (PLAR)-point-to-point unswitched connections.
