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Tones and Signals
BusinessPhone - Standard Telephone / Economyplus Telephone
Tones and Signals
Tones
Tones are audible in the handset.
Dial tone
(System ready to accept digits)
Special dial tone
(System ready to accept digits,
active diversion on telephone)
Ringing tone -repeated after 4 s
(Ringing signal to called party)
Special ringing tone -repeated after 4 s
(Ringing signal to line 2)
Busy tone
(Called party is busy)
Number unobtainable
tone
(Called number not accessible
or vacant)
Blocking tone
(Call cannot be executed due to
congestion or called party blocked)
Verification tone
(Verification that ordered
function is accessed)
Intrusion tone
(Sent to all parties during intrusion)
Conference tone -repeated after 15 s
(Sent to all participants in a
conference)
II II II II II II II II II II II
II II II
