Comdial ExecuTech System 2000 User Manual page 52

INTERCOM CALL PROGRESS
TONES - continued
Busy tone
Overnde feature
not allowed
Nignl transfer feature
not allowed
Called station in do-not-
disturb mode
X-back busy feature or
System is awaiting
memory dial number
or key mapping entry
after location is soecified
Override feature on
warning tone
500 msec tone bursts
sounded continuously
140 msec.tone burst
sounded twice every sec.
320 msec. tone burst
sounded once
80 msec. tone bursts sounded
continuously
80 msec tone bursts
sounded for 1.5 sec.
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