Specifications

Voice Terminals
Issue 11 December 1999
2-11
Handset Tones
The following tones are heard through the handset:
■ Answer Tone—a high-pitched continuous tone indicating that a data
endpoint has answered.
■ Busy Tone—a low-pitched tone repeated 60 times a minute; indicates that
the number dialed is in use.
■ Call Waiting Tone (Single-Line Voice Terminals)—one, two, or three
beeps (short bursts of high-pitched tone), not repeated; indicates to the
user at a busy single-line terminal that an incoming call is waiting to be
answered. The number of beeps indicates the source of the waiting call:
— One beep—a call from another voice terminal in the system
— Two fast beeps—a call from the attendant or an outside caller
— Three fast beeps—a priority call
■ Confirmation Tone—(three short bursts of tone) indicates that a feature
activation or cancellation has been accepted, or that an outgoing call from
a single-line voice terminal has been placed in a ringback queue.
■ Coverage Tone—(one long burst of tone) indicates to the calling party that
a call to an extension number will be answered at another extension
number by a covering user.
■ Dial Tone—(a continuous steady tone) indicates that dialing or feature
activation can begin.
■ Intercept Tone—(an alternating high and low tone) indicates either a
dialing error or a denial of the service requested.
■ Recall Dial Tone—(three short bursts of dial tone followed by steady dial
tone) indicates that the feature requested has been accepted and dialing
can start.
■ Recorded Telephone Dictation Ready Tone—(a high-pitched continuous
tone) indicates that a dictation machine has been connected to the voice
terminal.
■ Reorder Tone—(a fast-busy tone repeated 120 times a minute) indicates
that all outgoing trunks are busy or feature resource is not available. Try
again.
■ Ringback Tone—(a low-pitched tone repeated 15 times a minute)
indicates to the calling party that the number dialed has been reached
successfully and is ringing.
■ Ringback Tone, Call Waiting—(a ringback tone with a short lower-pitched
signal at the end) indicates to the calling party that the extension called is
busy, but that the called party has been given the call waiting signal.
■ Time-Out Tone— (an alternating high and low tone [same as intercept
tone]) indicates a failure to dial within a preset interval (usually 10 seconds)
after lifting the handset or after dialing the previous digit.