4000 Router Series Voice Command Reference

Examples

# Specify the R2 signaling standard of Singapore.

<Sysname> system-view

[Sysname] controller e1 1/0

[Sysname-E1 1/0] timeslot-set 0 timeslot-list 1-31 signal r2

[Sysname-E1 1/0] cas 0

[Sysname-cas 1/0:0] mode singapore

pcm

Use pcm to configure a companding law for PCM.

Use undo pcm to restore the default.

Syntax

pcm { a-law | μ-law }

undo pcm

Default

The companding law for PCM is a-law for E1 interfaces and -law for T1 interfaces.

Views

Digital voice interface view

Predefined user roles

network-admin

Parameters

a-law: Specifies a-law, used in China, Europe, Africa, and South America.

μ-law: Specifies -law, used in North America and Japan.

Usage guidelines

Companding laws quantize signals unevenly for the purpose of reducing noise and improving

signal-to-noise ratio.

Examples

# Adopt -law companding for PCM.

<Sysname> system-view

[Sysname] subscriber-line1/0:0

[Sysname-subscriber-line1/0:0] pcm u-law

re-answer enable

Use re-answer enable to enable re-answer signal processing on the originating side.

Use undo re-answer enable to restore the default.

Syntax

re-answer enable

undo re-answer enable