Sony SPP-A972 - Manual (Page 41)

Telephone Features
41 US
Telephone Features
Note
While conversing with an outside caller via the base unit or handset, you
cannot make an intercom call. If you press (INTERCOM), you will hear a busy
tone.
Tips
• You can receive an intercom call on the handset even when “RINGER” is set
to “RINGER OFF”.
• You can receive an intercom call on the base unit even when the L1 or L2
RINGER LEVEL switch on the base unit is set to OFF. The base unit will ring
at a low level.
Receiving a call while using the intercom
When a call comes in, “** RINGING **” appears on the display of
the handset and only the base unit rings at a low level.
The LINE 1 or LINE 2 button flashes.
Press (LINE 1) or (LINE 2) whichever is flashing, then you can answer
the call.