2593
Use the undo echo-canceller command to restore the default.
By default, the convergence rate of comfort noise amplitude is 0, the maximum
amplitude of comfort noise is 256, the comfort noise mixture proportion control
factor is 100, and the threshold of two-way talk is 1.
Related command: echo-canceller.
Example # Set the convergence rate of comfort noise amplitude to 50.
<Sysname> system-view
[Sysname] voice-setup
[Sysname-voice] echo-canceller parameter convergence-rate 50
em-phy-parm
Syntax em-phy-parm { 2-wire | 4-wire }
undo em-phy-parm
View Analog E&M voice subscriber line view
Parameter 2-wire: Chooses the 2-wire analog E&M wire scheme.
4-wire: Chooses the 4-wire analog E&M wire scheme.
Description Use the
em-phy-parm command to configure a wire scheme for the analog E&M
subscriber line.
Use the
undo em-phy-parm command to restore the default.
By default, the 4-wire analog E&M cable is selected.
This command is only applicable only to the analog E&M subscriber line. The
configuration will apply to all E&M interfaces of the card after you configure this
command.
Example # Choose the 4-wire scheme for the analog E&M subscriber line.
<Sysname> system-view
[Sysname] voice-setup
[Sysname-voice] subscriber-line 1/0
[Sysname-voice-line1/0] em-phy-parm 4-wire
em-signal
Syntax em-signal { delay | immediate | wink }
undo em-signal
