AT&T MERLIN LEGEND Release 4.0 Feature Reference page 103

Feature Reference
Caller ID
At a Glance
Users Affected
Reports Affected
Mode
Telephones
System Programming
Special Services
Hardware
Factory Setting
Type of Facility
Description
Beginning with Release 3.0, the system supports Caller ID. This feature is part of
local telephone companies' Custom Local Access Signaling Service (CLASS). It
provides the user with calling party number information from the central office
(CO) when a call rings on a loop-start trunk connected to an 800 GS/LS-ID
module. This information appears on MLX display telephones, much like the
Primary Rate Interface Automatic Number Identification (ANI).
NOTE:
Calling number identification is not available in all areas or jurisdictions. Check
with your local telephone company. The availability of caller identification
information may also be limited by the local-serving (caller's) jurisdiction,
availability, or central office equipment.
800 GS/LS-ID Circuit Module
The 800 GS/LS-ID circuit module provides eight analog loop-start or ground-
start line jacks, with each port capable of processing Caller ID information (over
loop-start lines only). It also provides two touch-tone receivers (TTRs) and can
have updated firmware downloaded to it through a PCMCIA card inserted in the
processor module.
Telephone users, operators
SMDR
System Information
GS/LS/Trunk Information
All
MLX Display only
More
Custom Local Access Signaling System (CLASS
Identification
800 GS/LS-ID circuit module
LS-ID Delay option off
Loop-Start
SM ) Caller
103
Caller ID