DCS-VIP User Guide
196
A message button or message reply feature code has been used to call the VM/AA
port.
7. PROGRESS TONE ID
These are the DTMF codes that are sent to the VM/AA port in place of regular
progress tones. For example, when a VM/AA port goes off hook to originate or
transfer a call, instead of hearing normal dial tone, it will hear DTMF "BA".
Progress tones can greatly increase the efficiency of a VM/AA system because it is
easier and quicker to detect DTMF than a busy, ringback or DND tone.
Progress tones can identify any of the following.
TONES
VALUE
0.
DIAL TONE
BA
1.
BUSY TONE
4
2.
RNGBACK TONE
5
3.
DND NO MORE
6
4.
HDSET ANSWER
3
5.
SPKER ANSWER
2
GENERAL RULES
1. 201 is talking to a trunk and presses TRANSFER plus the station number, but the
station is forwarded to VM/AA and VM/AA answers. When this happens, if 201
presses TRANSFER again to return to the trunk, the VM/AA port is not on hold. It is
disconnected.
2. A VM/AA port leaves a message indication for a station. When the station returns
the message, any available port in the VM/AA group should ring, not only the one
that left the message.
3. A VM/AA port leaves a message for a station. When the station returns the
message, the MESSAGE LED is not automatically turned off. If a VM/AA system
turns on the MESSAGE LED, the VM/AA system must turn it off.
4. If DTMF call progress tones are not enabled, the system sends regular call
progress tones (see Item #3).
5. When a VM/AA port calls a station that is in the AUTO ANSWER or VOICE
ANNOUNCE mode, the keyset will be forced to ring.
6. All calls to a VM/AA port or group will ring with C.O. Line ringing cadence, not
intercom ring cadence.
EXAMPLES OF VM/AA OPERATION (IN-BAND DTMF DIGIT STRING)
In the following example, all call and type data is turned on unless otherwise
stated.
X is the separator digit, all-default values are used in these examples and [ ]
means an item is not used.
A DIL 701 calls a VM/AA port or group:
[*] + [701] + [ ] + [ ]
In the above example, if C.O. information is not used:
[ ] + [ ] + [ ] + [ ] (Nothing is used)
DIL 701 calls a call-forwarded station (205):
[#] + [205] + [X] + [701]
In the above example, if forward information is not used: