10.9 PBX Configuration—[2-9] System—System Options
Option 5
SLT—SLT Hold Mode
Selects how to hold a line and transfer a call with an SLT. For details of each mode, see "2.13.1 Call Hold" in
the Feature Guide.
Value Range
Mode 1, Mode 2, Mode 3, Mode 4
Feature Guide References
2.13.1 Call Hold
SLT—Message Waiting Lamp Pattern
Specifies the Message Waiting Lamp light pattern of SLTs.
Value Range
1–12
Feature Guide References
2.20.1 Message Waiting
Whisper OHCA—for SLT
Enables the use of Whisper OHCA to SLTs and IP-PTs
Value Range
Disable, Enable
Feature Guide References
2.10.4.4 Whisper OHCA
Call Waiting—Automatic Call Waiting for Extension Call
Selects whether Busy Station Signalling (BSS) is automatically performed when an extension user calls a busy
extension.
Value Range
Disable, Enable
Feature Guide References
2.1.3.3 Call Waiting
Busy Out—Busy Out for Analogue CO
Enables the PBX to automatically set a trunk to Busy Out status when a loop current is not detected, preventing
that trunk from being used.
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PC Programming Manual