
V
Voice Mail Integration Digits
Installers can choose the DTMF digits that the FXT sends to a voice mail system. A voice mail system uses
these DTMF digits to determine system and station status so that it can properly process a call. Installers must
be versed in the voice mail’s requirements before they can assign DTMF integration digits in the FXT. The
system defaults the voice mail parameters to match the Comdial voice mail system. Certain applications in
countries with dialing plans different than the United States may require different integration digits. The default
digits are shown in the following list and discussed below:
•
Follow Extension ID = 2
•
Intercom/Answer Confirmation = 1
•
Busy = 2
•
Do Not Disturb = 3
•
Incoming Intercom Answer = 9
•
Disconnect = A
Follow Extension ID—When the voice mail system receives a forwarded call from a ring no-answer (RNA) or
busy station, the FXT sends to the voice mail system the extension number of the forwarded call followed by
this DTMF digit (n). The FXT sends this digit within 500 ms of the time the voice mail system answers the call.
For example, if extension 101 is forwarded to voice mail and voice mail answers a forward RNA or busy
forwarded call, the FXT sends 101n to the voice mail system within 500 ms of the answer time.
Intercom/Answer Confirmation—The FXT sends this DTMF digit to the voice mail system to confirm that an
intercom path (without dial tone) is available for the voice mail system’s call transfer or dialing use. The FXT
sends this digit within 500 ms of the time it detects the voice mail system’s off-hook or hookflash condition.
The FXT also immediately sends this digit to the voice mail system when a station answers a voice mail
transferred call. This action can alert the voice mail system to disconnect and leave the parties connected.
Busy—If the voice mail system transfers a call to a station that is busy on a call, the FXT sends this DTMF
digit to the voice system. When the voice mail system receives this digit, it can abandon the transfer, reconnect
to the call, and offer the caller whatever options the voice mail system has available in its programming. If the
FXT auto attendant transfer on busy feature is active, the FXT will not send the DTMF digit to the voice mail
system thus allowing the system to transfer a second call to the station.
DND—If the voice mail system transfers a call to a station that is in the do not disturb (DND) mode, the FXT
sends this DTMF digit to the voice system. Receiving this digit allows the voice mail system to distinguish
between a busy and a DND condition and offer the caller the appropriate choices.
Incoming Intercom Answer—The FXT sends this DTMF digit to the voice mail system when a station user
makes an intercom call to the voice mail system. This action allows the voice mail system to distinguish
between internal and external calls and offer the caller appropriate prompts and dialing options.
Disconnect—When an outside line or intercom party hangs up, the FXT sends this DTMF digit to the voice
mail system to command an immediate disconnect. For outside calls, the central office (CO) must provide
disconnect supervision to the FXT and the installer must program the FXT line for abandon hold release and
disconnect supervision. At default, the FXT sends the DTMF tone for the A character as the disconnect digit.
Since a caller cannot dial an A from a telephone. This feature eliminates callers from causing an accidental
disconnect by dialing this digit on their telephone’s dial pad.
General Description 6 – 95
General Description GCA40–215
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