3Com MSR 50, MSR 30 manual Pcm, Related command register-valueand force-metering enable, 2659

2659

Use the undo mode command to restore the default.

By default, ITU-T R2 signaling applies.

This command applies to R2 signaling only.

The R2 signaling standards implemented in different countries and regions may vary. They are called ITU variants. To accommodate to the R2 signaling in a country or region, you may use the mode command. The system can automatically select the appropriate subscriber line state, service category, metering signal, and signal values of C and D bits, and so on.

At present, the device supports Brazil, Mexico, Argentina, India, New Zealand,

Thailand, Bengal, South Korea, Hongkong, Indonesia, and other ITU-T variants.

With the default-standardkeyword configured, the system initializes the subscriber line status, service type, metering signal and C and D signaling bits and other parameters depending on the default settings of configured national R2 signaling variants.

If the custom keyword is configured, you can customize specific signaling exchange procedures and signal values in R2 signaling to accommodate to countries.

Related command: register-valueand force-metering enable.

Example # Adopt Hongkong default R2 signaling.

<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-cas1/0:0] mode hongkong default-standard

pcm

Syntax pcm { a-law µ-law }

undo pcm

View Voice subscriber line view

Parameter a-law: Companding A-law, used in most part of the world other than North America and Japan, such as China, Europe, Africa, and South America.

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

Description Use the pcm command to configure a companding law used for quantizing signals.

Use the undo pcm command to restore the default.