1.1 Before Operating the Telephones
VOICE CALL/MUTE:
VOICE CALL
Used to monitor an intercom call
automatically, but it cannot be used for
MUTE
hands-free conversations. It also mutes
the handset microphone during a
conversation.
PROGRAM:
PROGRAM
Used to enter and exit the Programming
mode.
PROG.
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User Manual
Call Forwarding (FWD)/Do Not Disturb
(DND):
Used to perform Call Forwarding (FWD)
or Do Not Disturb (DND).
FWD/DND
ANSWER:
ANSWER
Used to answer an incoming call.