NEC UNIVERGE UM8000 User Manual page 319

Touchtone Phone Sensitivity
The messaging system detects real touchtones dialed by a caller while screening out "false" touchtones that occur in
natural human speech. The system distinguishes between them on the basis of length. Dialed touchtones are usually
longer than the similar tones in speech, so the system ignores tones under a specified length.
The messaging system stores three different minimum lengths for touchtones, each is specified in milliseconds. For
example, if you type the number two, the system ignores tones shorter than two one-thousandths of a second.
If you find that the messaging system is not identifying touchtones, use the following procedure to adjust the
sensitivity:
To adjust touchtone sensitivity
In the Navigation Pane, click System > Switch > Touchtones.
1.
For detailed information refer to
Reduce the When playing a prompt field value by one.
2.
For example, if the field is set to 12, type
Reduce the When playing a message field value by one.
3.
Reduce the When recording a message field value by one.
4.
Click Save.
5.
Make several test calls to the system.
6.
If the problem persists, repeat this procedure adjusting the field values by one with each iteration.
Cellular Phone Problems
Cellular phone users are the most likely to complain about the system not recognizing touchtones. Unfortunately, due to
the inherent limitations of cellular transmission, you might not be able to fully resolve the problem for those
subscribers. Have the subscriber repeat their steps using a regular analog or digital telephone to determine if the
problem is the cellular phone.
Volume Control, Playback Speed Control, and Resume from Pause Problems
Some phone systems do not support playback volume control, speed, or resume from pause features during message
playback. Users might complain that the system is not recognizing touchtones when these features are not supported.
Contact Technical Support to confirm that your phone system supports these features.
UNIVERGE phone systems using IP Protims or SIP do not support volume control or playback speed control.
Related Topics
Call Report Log Reports
Message Networking Configuration
Troubleshooting
Troubleshooting
System > Switch > Touchtones.
11 in the text box.
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