NEC UNIVERGE UM8000 User Manual page 211

Activating General Tone Detection
When the general tone detection feature is activated, the messaging system can listen for busy, reorder, or dial tones at
all times. The messaging system checks for a dial tone before it dials out to deliver messages or to light message
waiting lamps.
Activate general tone detection to prevent dialout call collisions and to prevent phantom calls when the phone system
does not have an immediate disconnect feature. Phantom calls can occur when callers disconnect before the call is
transferred.
To activate general tone detection
In the Navigation Pane, click System > Switch > Switch Information.
1.
See the Switch > Information
Integration options.
Type in the Integration options field to detect tones. The following integration settings control different
dt
2.
aspects of the system dial tone detection sensitivity:
• DT2=n. Dialtone Detection Recording Cutoff Value. Deletes the specified number of centiseconds from the end
of a message terminated by dial tone, where n is the number of centiseconds from 0 through 100. The default
value is 0. This integration setting is used to eliminate a disconnect tone that might have been recorded in a
message.
• DT8=0. Disable Checkpoint Dial Tone Detect on Dialout. Disables dial tone detection when taking a line
off-hook to dial out. This is used in integrations where the phone system does not provide dialtone after going
off-hook. The messaging system continues to listen for a dial tone during the conversation and while recording
and playing messages. Type dt8=1 to reactivate this feature.
• DT9=0. Disable Checkpoint Dial Tone Detect on Transfer. Disables dial tone detection when transferring calls.
This is used in integrations where the phone system does not provide dialtone after dialing the transfer
sequence. The messaging system continues to listen for a dial tone during the conversation and while recording
and playing messages. Type dt9=1 to reactivate this feature.
Click Save.
3.
Related Topics
Configuring Integration Options
Mapping or Routing Trunks
Configuring Identified Subscriber Messaging
Phone System Overview
Phone System Overview
table and your phone system documentation for detailed information about
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