Command Reference Guide

3Com Router 5000 Family and Router 6000 Family busytone-t-th ● 21
Command Reference
busytone-t-th
Purpose Use the busytone-t-th command to configure the threshold of busy tone
detection.
Use the undo busytone-t-th command to restore the default.
Syntax busytone-t-th time-threshold
undo busytone-t-th
Parameters time-threshold
Threshold of busy tone detection. Valid values are 2 to
12, with a bigger value meaning longer detection
time. The threshold defaults to 2, that is, the device
hangs up upon two contiguous detections of busy
tone.
Example Set the threshold of busy tone detection to 3.
[VG-voice-line0] busytone-t-th 3
View This command can be used in the following views:
■ FXO Voice Subscriber-Line view
Description The actual busy tone data does not always match the configured parameter. If the
difference is large, detection inaccuracy may occur, resulting in on-hook failure or
improper on-hook. You can however, tune the threshold of busy tone detection to
achieve detection accuracy. For example, you can eliminate improper on-hooks
caused by busy tone data inaccuracy by increasing the time for busy tone detection.
Note that before you configure a threshold of busy tone detection, you must test it
fully making sure that on-hook operation can be done properly.