NEC Univerge SV8100 Features And Specifications Manual page 724

Issue 13.0
The General Purpose Relay cannot be activated by DISA.

Default Setting
Disabled
System Availability
Terminals
All Multiline Terminals (using access code)
Multiline Terminal (using line key)
Required Component(s)
PGD(2)-U10 ADP
CD-CP00-US
Related Features
Analog Communications Interface (ACI)
Door Box
Paging, External
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UNIVERGE SV8100
General Purpose Relay