AT&T MERLIN LEGEND System Reference Manual page 362

Features
Remote Access
Description
The Remote Access feature allows employees to dial into the system by dialing
the number of a line or trunk designated for Remote Access. The remote user
should be required to dial a barrier code (password) after reaching the system.
After gaining access to the system, the remote user can:
Dial extension numbers directly without going through the system operator.
A remote employee can call internal telephones, data terminals, or calling
groups just as calls are made from an internal telephone.
Select a regular or special purpose (e.g., WATS) outside line (or, in the
Hybrid/PBX mode, a pool) or Automatic Route Selection (ARS) to make
outgoing calls. If the pool is busy, the system can be programmed to make
the remote user eligible for using Callback to put a call in queue for the busy
pool.
Arrange to have calls forwarded, change the forwarding destination, or
cancel call forwarding to a telephone inside or outside the system.
Note: Calls made via Remote Access to locations outside the system may vary
in transmission quality.
Remote Access also allows remote system programming and maintenance by
AT&T or an authorized representative.
Specific outside lines/trunks are assigned for either Dedicated or Shared
Remote Access. When Dedicated Remote Access is assigned to a line/trunk, all
incoming calls on that line/trunk receive the Remote Access treatment. When
Shared Remote Access is assigned to a line/trunk, incoming calls on that
line/trunk receive the Remote Access treatment only when Night Service is
activated on the system. Remote Access can be assigned to any outside line
connected to the system, except for DID or dial-in tie trunks. For DID and dial-in
tie trunks, Remote Access is possible when the remote user dials the Remote
Access code (the factory-set code is 889).
Remote Access treatment means that the system answers the call and the caller
receives a special dial tone. If a barrier code is required, the caller dials the
required 4-digit barrier and receives a second dial tone. If a barrier code is not
required, the caller can dial an extension, pool dial-out code, ARS code,
telephone number, or feature code.
When a call is received on a line/trunk assigned with Shared Remote Access,
and Night Service is not activated, the call rings at either the assigned
telephone, the system operator console, or a calling group.
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