AT&T 518-600-016 manual System Overview

●In a pooled system, outside lines can be grouped into line pools (groups of interchangeable lines). To get an outside line in a pooled system, the user must dial an access number or use a dedicated pool button on the voice terminal. Access to outside line pools can also be had through Automatic Route Selection (ARS).

●In a behind-switch system, the MERLIN II system operates behind a larger system such as a System 25, 75, or 85 PBX. In this configuration, most features of both systems are available to the MERLIN II system user. Refer to Figure 1-2for an example of a MERLIN II system operating behind a digital PBX.

System Overview 1-5