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1.19 Voice Mail Features
Feature Guide 147
1.19.2 Voice Mail Inband (DTMF) Integration
Description
A Panasonic Voice Processing System (VPS) or similar product from another manufacturer can provide
Automated Attendant (AA) and Voice Mail (VM) services when connected to the PBX.
The VPS and PBX communicate with each other by sending DTMF (Dual Tone Multi-Frequency) signals.
For more information, refer to the documentation provided with the VPS.
1. AA Service
Allows the VPS to answer calls and direct callers to dial a number in order to connect themselves to the
desired party (e.g., "Enter the extension number of the desired party."). It is possible to access VM
service from AA service to, for example, record messages.
2. VM Service
Allows callers to leave voice messages for specific parties, such as an extension user. Extension users
can then listen to the messages left in their mailboxes at their convenience.
AA Service
A VPS can be used for the AA service as well as the VM service. When a call is directed to a port of the
VPS that is in AA service mode, the caller will hear an outgoing message (OGM). After or while listening to
the OGM, the caller may dial an extension number as directed (e.g., "Enter the extension number of the
desired party.").
If the VPS transfers a call via the AA service, the PBX will inform the VPS of the status of the called party
using a DTMF status signal so that the VPS will know the status. This enables the VPS to quickly play an
appropriate OGM to the caller (e.g., "I'm handling another call now...", "I'm away from my desk now...", etc.).
The DTMF status signals sent by the PBX are explained below.
[DTMF Status Signals]
Status Condition DTMF Status Signal
Ringback Tone The PBX is ringing the corresponding
extension.
1
Busy Tone The called extension is busy. 2
Reorder Tone The dialled number is invalid. 3
DND Tone The called extension has set DND ( 1.3.1.3
Do Not Disturb (DND)).
4
Answer The called extension has answered the call. 5
Confirm The PBX confirms that a feature (such as
Message Waiting) has been set or cancelled on
the extension.
9
Disconnect The caller has hung up. #9
FWD to VM Ringback Tone The called extension has set FWD to VPS (
1.3.1.2 Call Forwarding (FWD)) and the PBX is
calling another port of the VPS.
6
FWD to VM Busy Tone The called extension has set FWD to VPS and
all ports of the VPS are busy.
7