Alcatel-Lucent omniacces-voip gateway User Manual

Page of 430
VoIP Commands
Page 5-44
Command Usage
Specify line coding of voice port.
Syntax Options
Remarks
AMI line coding is supported when the voice daughtercard connection port interface type is 
set to T1, E1, E1 ISDN PRI, or BRI Euro via the 
voice port interface type
 command.
The term dsx1AMI refers to a mode wherein no zero code suppression is present is used on 
the link because line encoding does not solve the problem directly. In this application, the 
higher layer must provide data which meets or exceeds the requirements, such as inverting 
High Level Data Link Control (HDLC) data. E1 links, with or without a Cyclic Redundancy 
Check (CRC), use dsx1AMI line coding.
B8Zs line coding is supported when the voice daughtercard connection port type is T1. The 
term dsx1B8ZS refers to the use of a specified pattern of normal bits and bipolar violations 
which are used to replace a sequence of 8 zero bits.
HDB3 line coding is supported when the voice daughtercard connection port type is E1, 
ISDN PRI E1, or BRI Euro.
voice port line coding
voice port <
slot/port 
>
 
[line build out] line coding {ami | b8zs | hdb3}
Definitions: 
slot
Specifies slot number of voice switching daughtercard installed in switching module, 
(e.g., 
2
).
port
Specifies physical port number on voice daughtercard, (e.g., 
1
).
line build out
Optional command syntax.
ami
Specifies Alternative Mark Inversion line coding for the voice port.
b8zs
Specifies Bipolar 8 Zero substitution line coding for the voice port.
hdb3
Specifies High density Bipolar with 3 zero substitution line coding for the voice port.
Default:
The default line coding type is 
b8zs for T1 or AMI for E1.
Command Examples:
voice port 2/1 line build out line coding ami
voice port 2/2 line build out line coding b8zs
voice port 2/3 line build out line coding hdb3
voice port 2/4 line coding ami
voice port 3/1 line coding b8zs
voice port 3/2 line coding hdb3