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DCS SPECIAL APPLICATIONS
COMBINED PROGRAMMING MANUAL NOVEMBER 2001
3–3
In-Band Signalling
Systems can be programmed to send the calling station’s extension number after
the voice mail system answers. These DTMF signals may include a leading digit to
indicate the type of call and additional information about the original caller. DTMF
signals may also be substituted for call progress tones to speed up voice mail call
processing. This program allows call forwarding to a mailbox and bypassing of the
main greeting for automatic message retrieval. Blind (unscreened) transfers may be
performed because the recall will be correctly identified.
Note: The effectiveness of this program depends on the ability of the voice mail system to
make use of this information.
• Station Hunt Group With Overflow
Each station group can have an individual overflow destination with an individual
overflow timer. The overflow destination will ring whenever a call to the group is not
answered. If the voice mail system becomes inoperative, calls are automatically
routed to the overflow destination.
• Internal Call Forwarding to Voice Mail
This option in MMC 300 provides the ability to allow or deny call forwarding of inter-
nal calls to voice mail. This feature conserves disk drive space by only storing calls
originating outside the system.
• One-Touch Voice Mail Access
One-touch speed dial keys can be programmed to automatically dial, log into and re-
trieve messages from voice mail.
• Call Progress Tones
The only tones sent to a VM/AA port are dial tone, busy and ringback. To eliminate
confusion, busy tone is substituted for DND or error tones on voice mail ports only.