Telephone Tones
Chirp
Single chirp sound that indicates pocket
telephone has been turned on. Double
chirp sound indicates pocket telephone
has been turned off.
Dial Tone
Continuous tone heard when accessing
the pocket telephone line. Indicates that
the telephone line is available for use.
Special Dial Tone
Broken dial tone followed by regular dial
tone. Indicates a feature has been
accessed.
Standard Busy Tone
Regular intermittent tone heard after
dialing a number. Indicates the called
number is busy (60 tones per minute).
Overflow Busy Tone
Fast busy tone heard after dialing a
number. Indicates the called number is
invalid or could not be processed (120
tones per minute).
BASIC OPERATION
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