AT&T MDC 9000 User's Guide download pdf (Page 31)

Tones and Their Meanings

Ringing tones are produced by an incoming call. Handset tones are those which

you hear through the handset (receiver).

Ringing Tones

1 ring—A call from another extension.

2 rings—A call from outside or from the attendant.

3 rings—A priority call from another extension, or from an Automatic Callback

call you placed.

ring-ping (half ring)—A call redirected from your telephone to another because

the Call Forwarding feature is active.

Handset Tones

busy tone—A low-pitched tone repeated 60 times a minute; indicates the

number dialed is in use.

call waiting tone—One, two, or three beeps of high-pitched tone, not repeated;

indicates an incoming call is waiting to be answered. Number of beeps designates

the source: one for an internal call, two for an outside or attendant call, three for

a priority call.

call waiting ringback tone—A ringback tone with a lower-pitched signal at the

end; indicates that the extension called is busy, but the called party has been

given a call waiting tone.

confirmation tone—Three short bursts of tone; indicates a feature activation or

cancellation has been accepted.

coverage tone—One short burst of tone; indicates your call will be sent to

another extension to be answered by a covering user.

dial tone—A continuous tone; indicates dialing can begin.

intercept/time-out tone—An alternating high and low tone; indicates a dialing

error, denial of the service requested, or a failure to dial within a preset interval

(usually 10 seconds) after lifting the handset or dialing the previous digit.

priority ringing—Eight individual ringing patterns administered by the system

manager.

programming tone—A low continuous tone when you are in programming mode

(programming a programmable dialing button).

recall dial tone—Three short bursts of tone followed by a steady dial tone;

indicates the feature request has been accepted and dialing can begin.

reorder tone—A fast busy tone repeated 120 times a minute; indicates all

trunks are busy.

ringback tone—A low-pitched tone repeated 15 times a minute; indicates the

number dialed is being rung.

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AT&T MDC 9000 User's Guide Page 31