3com MSR 20-20 참조 매뉴얼

<Sysname> system-view

[Sysname] voice-setup

[Sysname-voice] dial-program

[Sysname-voice-dial] entity 10 pots

[Sysname-voice-dial-entity10] vad-on 

vi-card busy-tone-detect { auto index line-number | custom area-number index argu 
f1 f2 p1 p2 p3 p4 p5 p6 p7 }

undo vi-card busy-tone-detect custom index

Voice view

index: Index of busy tone type, in the range of 0 to 3.

line-number: Voice subscriber line number. The value range varies with the 
inserted cards.

area-number: Area number. Currently, it is set to 2.

argu: Reserved, in the range of 0 to 32,767.

f1: Frequency 1 in Hz, in the range of 50 to 3,600.

f2: Frequency 2 in Hz, in the range of 50 to 3,600.

p1: Signal amplitude 1, in the range of 50 to 32,767.

p2: Signal amplitude 2, in the range of 50 to 32,767.

p3: Duration of a single tone in milliseconds, in the range of 10 to 1,000.

p4: Duration error of a single tone in milliseconds, in the range of 0 to 500.

p5: Duration of silence in milliseconds, in the range of 10 to 1,000.

p6: Duration error of silence in milliseconds, in the range of 0 to 500.

p7: Absolute difference between p3 and p5 in milliseconds, in the range of 0 to 
500

Use the vi-card busy-tone-detect command to configure the parameters for 
the busy tone detection on the FXO interface.

Use the undo vi-card busy-tone-detect command to restore the default 
settings.

This command applies to the FXO interface only.

The system supports four types of busy tones, which are specified by the index 
argument.