AT&T MERLIN LEGEND Release 2.0 System Programming Manual page 268

Programming Procedures
B-Channel Groups
Use this procedure to assign B-channels to a group and to associate individual
ISDN channels that can place and receive calls on the B-channels in each
group.
Each B-channel can be assigned to only one group, and each ISDN channel
can be associated with only one group.
Each group can contain up to 23 channels; however, all channels assigned
must signal through the same D-channel (that is, must be connected to the
same 100D module).
B-channels must be assigned in the order of system search (through the group)
for an available channel. To minimize call attempts on the same line or trunk,
arrange B-channels in the opposite order of the hunting arrangement provided
by the network service provider.
B-channels must be identified by control unit slot and port number since they
are not associated with a line/trunk number or a logical ID. Up to 69 B-channel
groups can be established.
Entering Programming
Console: Select Menu
PC/SPM: Type SPM
Exiting Without Changes
To exit from any screen without making changes, select Exit on the console or
[F5]
press on the PC before saving your entry or menu selection.
Summary: B-Channel Groups
Programmable by
Mode
Idle Condition
Planning Form
Factory Setting
Valid Entries
Inspect
Copy Option
Sys Program
Exit
[F1]
press any key
System manager
All
Not required
Form 3b, Incoming Trunks – DS1 Connectivity
(100D Module)
Not applicable
Group numbers
Yes
No
[F5]
B-Channel Groups 3-177