Technical Configuration

MultiVOIP User Guide

 

 

T1 Parameter Definitions (cont’d)

Field Name

Values

Description

Line Coding

AMI / B8ZS

Match to PBX or telco.

 

 

 

PCM Law

A-Law/Mu-Law

Match to PBX or telco. “

 

 

Mu-law” is analog-to-digital

 

 

compression/expansion

 

 

standard used in North

 

 

America. “A-law” is European

 

 

standard.

 

 

 

Yellow Alarm

Bit 2 / 1111…

Depending on the Frame

Format

 

Format used, there are choices

 

 

of Yellow Alarm format, as

 

 

follows:

 

 

D4: -Bit2= 0 in every speech

 

 

channel

 

 

-FSbit of frame 12 is forced

 

 

to one.

 

 

ESF: -Bit2= 0 in every speech

 

 

channel

 

 

–1111111100000000 pattern

 

 

in data link channel.

 

 

Check with your PBX/telco

 

 

administrator for the correct

 

 

setting or use the default value

 

 

(1111 … ).

 

 

 

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