Avaya Communication Manager Administrator's Manual page 1606

Screen Reference
Group Number
This field displays the group number assigned when the trunk group was added.
Note:
For trunk groups connecting 2 media servers or switches in Distributed
Note:
Communication System networks, Avaya recommends that you assign the same
group number on both servers or switches.
Group Type
Enter the type of trunk group. The fields that are displayed and available might change
according to the trunk group type selected. Busy-out the trunk group before you change the
group type. Release the trunk group after you make the change. For more information about
busying out and releasing trunk groups, see your system's maintenance documentation.
For more information about ISDN trunk group screens, see
Valid entries
Access
APLT
CAMA
CO
CPE
DID
DIOD
1606 Administrator Guide for Avaya Communication Manager
Usage
Use access trunks to connect satellite media servers or switches to the
main switch in Electronic Tandem Networks (ETN). Access trunks do not
carry traveling class marks (TCM) and thus allow satellite callers
unrestricted access to out-dial trunks on the main server. Allows Inband
ANI.
Advanced Private Line Termination (APLT) trunks are used in private
networks. APLT trunks allow inband ANI.
CAMA trunks route emergency calls to the local community's Enhanced
911 systems.
CO trunks typically connect Communication Manager to the local central
office, but they can also connect adjuncts such as external paging
systems and data modules.
Use CPE trunks to connect adjuncts, such as paging systems and
announcement or music sources, to the server running Communication
Manager.
Use DID trunks when you want people calling your organization to dial
individual users directly without going through an attendant or some other
central point. Allows Inband ANI.
DIOD trunks are two-way trunks that transmit dialed digits in both
directions. In North America, use tie trunks for applications that require
two-way transmission of dialed digits. Allows Inband ANI.
ISDN Trunk Group.
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