AT&T MERLIN LEGEND Release 3.1 System Planning Manual page 90

Selecting Line/Trunk Options
For detailed information about these options, see the Feature Reference .
You may want to assign remote access to only a few trunks and increase the
number later if more are needed.
NOTE:
If you want to allow remote access on DID trunks, the routing digits supplied by
the central office must match the factory-set remote access code (889) or the
remote access code assigned to the system in the following procedure.
!
SECURITY ALERT:
The use of DID trunks for remote access is not recommended.
Planning Form Instructions
1. See "Numbering the System" in Chapter 2. Review the numbers available
in the numbering plan you have selected. Before you begin planning
remote access, check the Control Unit Diagram on Form 1 to verify that
one or more of the following types of modules are present: 400, 400
GS/LS/TTR, 008 OPT, 800 DID (Hybrid/PBX mode only), 800 GS/LS-ID,
012, or 016 modules.
2. Under the DID and Tie Trunks heading at the top of Form 3a, Incoming
Trunks: Remote Access, do one of the following:
To keep the factory-set access code, check Remote Access Code:
889 and proceed to Step 3.
To change the factory-set access code:
a. Check Renumber to and write the new number on the line
b. On Form 2d, System Numbering: Special Renumbers, write the
3. Under the Automatic Callback heading at the top of Form 3a, check one
of the following:
If you do not want remote callers to use the Automatic Callback
feature, check Disable (factory setting).
To allow remote callers to use this feature, check Enable.
3–18
Lines/Trunks
provided.
new number in the Renumber to column of the Remote Access
Code section at the bottom of the form. Proceed to Step 3.