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If the system is busy (the intercom path is in use by another intercom caller or
the Caller ID Database is busy), you will hear a warning tone when you press
the INT button. The display shows:
OR
If Handset #2 is busy, Handset #1’s display shows the following (Handset #2 will
not hear an intercom tone):
NOTE: The called party remains undisturbed, and will not hear a call
waiting triple beep for intercom call.
If Handset #2’s ringer is turned off, your display shows:
Handset #2’s display shows:
NOTE: The called party can pick up the intercom call, even when the
ringer is off.
If you hear a warning tone and your display shows: