AT&T MERLIN LEGEND Communications System PBX System Planning Manual page 67

Trunks
See "System Numbering" in Chapter 2.
Review the numbers available in the
numbering plan you have selected.
3-12 Trunk Options
You must decide which trunks you want to be used for either Dedicated or
Shared Remote Access:
When you assign Dedicated Remote Access to a trunk, all calls coming in on
that trunk receive the Remote Access treatment. This means that the caller
hears the system dial tone if no barrier codes are setup for the trunk, or a
special dial tone if you specify that a barrier code is needed.
When you assign Shared Remote Access, calls coming in on that trunk
receive the Remote Access treatment only when the system is in Night
Service (see Chapter 4).
You can assign Remote Access to any outside trunk connected to the system
except DID and dial-in tie trunks. For DID and dial-in tie trunks, Remote Access
is achieved by dialing the factory-set Remote Access code,
Note: If you want to allow Remote Access on DID trunks, one of the telephone
numbers assigned by the telephone company must match the Remote Access
code, 889.
You may want to begin by assigning Remote Access to only a few trunks and
increasing the number later if more are needed. Keep in mind that Remote
Access should not be assigned to trunks and tie trunks that are used for
incoming customer calls.
Once you have decided which trunks are to be used for Remote Access, decide
whether you want to change the factory-set access number from 889 for DID
and dial-in tie trunks.
Planning Form Instructions
Mark PBX System Form 3a, Outside Trunks - Remote Access
1. To change the factory-set access code:
Write the new number in the "Renumber To" space.
Locate PBX System Form 2d, System Numbering - Special
Renumbers and write the new number in the "Renumber To" column
of the "Remote Access Code" section of that form.
2. Under the heading "Automatic Callback" at the top of Form 3a:
Check "Disable" if you do not want remote callers to use this feature.
Check "Enable" to allow this feature to remote callers.
3.
Under the heading "Barrier Codes for DID and Tie Trunks":
Check "Yes" if you plan to assign barrier codes to these trunks.
Check "No" if no barrier codes are planned.
4 . For "Barrier Codes for Non-Tie Trunks":
Check "Yes" if you plan to assign barrier codes.
Check "No" if no barrier codes are planned.
889.