Answer Back; Tones; Switch Generated Tone Characteristics - Nortel DMS-100 Series Installation, Operation And Maintenance Manual

3-12 Operations and features

Answer back

Auto Answer Back (AAB) can be provided on the M5316 as an assigned
feature or as a key-accessible feature. As an assigned feature, it is always
operational. As a key-accessible feature, AAB allows the user to activate or
deactivate the AAB feature as required. If AAB is activated, an incoming
call to the PDN is automatically answered after a two-second burst of
alerting tone. Conversation can start in Handsfree mode using the speaker
and microphone. Microphone muting is possible with AAB mode. When
the user lifts the handset to speak, speech is shifted to the handset. The call
is disconnected when the calling party hangs up, but the Handsfree LCD
indicator remains ON until either the Release key is pressed or the handset is
lifted from and then returned to the cradle.

Tones

A speaker is used for alerting tones and call monitoring (on-hook dialing and
listen on hold). A locally generated buzzer (500 Hz) tone is utilized for call
waiting and off-hook alerting. All other telephony tones are provided by
switching equipment from a Tone Card.

Switch generated tone characteristics

The various tones heard on the M5316 are defined in Table 3-3.
297–2011–214 02.01 Standard February 1999