Mode Of Operation - AT&T MERLIN LEGEND Release 2.0 Programming Summary Manual

Basic System Operating Conditions

Mode of Operation

The system mode-Key, Behind Switch, or Hybrid/PBX-determines how the
system operates. More specifically, the system mode determines:
how lines or trunks are provided to users
types of operator consoles allowed
features available
Changing this option causes a system restart and terminates the
programming session. You must re-enter system programming to program
other features.
NOTE:
The Hybrid/PBX option is not available if the control unit processor module
has been modified with the hardware strap in place to operate in Key
mode only. See Equipment and Operations Reference.
These options cannot be programmed for Key or Behind Switch systems:
Automatic Route Selection (ARS)
Pools
Queued Call Consoles (QCCs) and associated features
Direct Inward Dialing (DID) Trunks
System Access buttons
Dial Plan Routing (PRI)
Call by Call Services (PRI)
The Ground-start trunks option cannot be programmed if the processor
module has been modified for Key mode-only operation.
Mode of Operation
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