4000 Router Series Voice Command Reference

Usage guidelines

This command takes effect only after the echo-canceler enable command is configured.

Examples

# Disable the EC nonlinear processing function on voice interface 1/0.

<Sysname> system-view

[Sysname] subscriber-line 1/0

[Sysname-subscriber-line 1/0] undo nlp-on

Related commands

echo-canceler enable

open-trunk

Use open-trunk to enable E&M non-signaling mode.

Use undo open-trunk to disable E&M non-signaling mode.

Syntax

open-trunk { caller [ monitor interval ] | called }

undo open-trunk

Default

The E&M non-signaling mode is disabled.

Views

E&M interface view

Predefined user roles

network-admin

Parameters

caller: Enables E&M non-signaling mode on the originating device.

monitor interval: Sets the monitoring time in the range 60 to 600 seconds. If the terminating side does

not go off-hook within the specified time, the originating side re-initiates a call to the terminating side.

The monitoring timer starts immediately after this option is configured.

called: Enables E&M non-signaling mode on the terminating device.

Usage guidelines

You must configure the signal immediate command on the originating and terminating devices before

configuring this command.

Configure the open-trunk caller [ monitor interval ] command on the originating device, and configure

the open-trunk called command on the terminating device.

For the E&M non-signaling mode to work with the PLAR function, you need to configure the private-line

command on the originating device. For more information about the PLAR function, see "Configuring dial

programs."

Examples

# Enable the E&M non-signaling mode on the originating device, and specify the monitoring time as 120

seconds.