AT&T MERLIN LEGEND Release 2.0 Equipment And Operations Manual page 51

Introduction
Telephone # 1 Telephone # 2 Telephone # 3
Telephone # 4
Figure 1-6. Behind Switch Mode
Modified Configurations
In addition to accessing the host's outside trunks, the Behind Switch system can
be modified to bypass the host and provide direct access to outside trunks—for
example, to connect WATS lines directly to the control unit so that they are
available only for this system's users. Figure 1-7 illustrates this configuration,
Modes of Operation 1-23