3Com 3C10402B Administrator's Manual page 179

channel has been a member of a group in the past, the system moves the
channel to the group of which the channel was most recently a member.
Example: By default, the system creates two groups, Group 1 and Group
2, and places all channels in Group 1. If you try to move a channel to the
non-member list of Group 1, the operation fails. If you:
1 Select Group 2.
2 Click the Membership tab.
3 Move a channel from the non-member list to the member list.
4 Move the same channel back to the non-member list
the operation succeeds because the channel was previously a member of
Group 1. If you then view the Group 1 membership list, it contains the
channel you just removed from Group 2.
To change group membership:
1 Click the appropriate link:
PSTN Gateway Configuration > T1 Groups
■
PSTN Gateway Configuration > ISDN PRI Groups
■
PSTN Gateway Configuration > ISDN BRI Groups
■
2 Click the name of the group that you want to modify.
3 Click the Membership tab.
4 Enable the Copy Group Settings to Channels check box so that the
system copies the settings of the group to each channel you add or
remove. Otherwise, the system does not change the channel settings.
5 Enable the Refresh Channels on Add/Remove field so that the system
updates the channel status when you add or remove channels.
6 To add a group member:
a If the group does not include any members, enable the check boxes
next the MAC addresses that you want to add to the group.
b If the I group already has members, click Show all to display a list of
MAC addresses that you can add to the group's membership.
Note: You can toggle between the Show all and Show members only
buttons to display MAC addresses that have membership in the group
and the MAC addresses that are not members of the group but who you
can add to the group, and to confirm your changes.
Configuring and Managing Digital Line Cards 179