3Com MSR 30 Subscriber-line, Slic-gain 0, Undo slic-gain, Syntax subscriber-line line-number

2610 CHAPTER 173: VOIP CONFIGURATION COMMANDS

threshold ranges from 0 to 200. Normally, the signal amplitude on the links without traffic is in the range of 2 to 5.

time-length: Silence duration for automatic on-hook. Upon expiration of this duration, the system goes on-hook automatically. It ranges from 2 to 7,200 seconds.

Description Use the silence-th-spancommand to set the silence duration for automatic on-hook.

Use the undo silence-th-spancommand to restore the default.

By default, the silence threshold is 3 and the silence duration for automatic on-hook is 7,200 seconds (namely, 2 hours).

Example # Set the silence threshold to 20 and the silence duration to 10 seconds.

<Sysname> system-view

[Sysname] voice-setup

[Sysname-voice] subscriber-line 1/0

[Sysname-voice-line1/0] silence-th-span 20 10

slic-gain

Syntax	slic-gain { 0 1 }
	undo slic-gain
View	Analog E&M voice subscriber line view
Parameter	0: Sets the output gain of the subscriber line interface circuit (SLIC) chip to 0.8 dB.
	1: Sets the output gain of the SLIC chip to 2.1 dB.
Description	Use the slic-gaincommand to configure the output gain of the SLIC chip. The
	bottom layer tunes signal gain through the SLIC chip.
	Use the undo slic-gaincommand to restore the default output gain.
	By default, the output gain of the SLIC chip is 0 dB.
Example	# Set SLIC-gain to 1 in analog E&M voice subscriber line view.
	<Sysname> system-view
	[Sysname] voice-setup
	[Sysname-voice] subscriber-line 1/0
	[Sysname-voice-line1/0] slic-gain 1

subscriber-line

Syntax subscriber-line line-number