Command Reference Guide

168 ● group-b 3Com Router 5000 Family and Router 6000 Family
Command Reference
group-b
Purpose Use the group-b command to enable or disable Group-B stage signal to complete
register exchange.
Syntax group-b { enable | disable }
Parameters enable
Enables signal exchange at Group-B stage of R2
signaling.
disable
Disables signal exchange at Group-B stage of R2
signaling, that is, backward Group-A signal A6 is used
to complete register exchange directly.
Default By default, Group-B stage signal is used to complete register exchange, that is, the
command is in enable state.
Example Enable Group-B signal to complete register exchange.
[3Com -cas1/0/0:0] group-b enable
View This command can be used in the following views:
■ R2 CAS view
Description Use the group-b command to enable or disable Group-B stage signal to complete
register exchange.
This command applies to E1 voice only.
In some countries, R2 register exchange does not support Group-B stage signal
exchange, or cannot correctly interpret Group-B signal value. Then you can use the
group-b command to enable or disable Group-B signal exchange.
Related Command register-value req-switch-groupb