BCM50 System Start Up
NN40010-318 Issue 1.2 BCM50 Rls 6.0 57
2. Then select Expansion 1.1 and configure the Disconnect timer settings
as required. Repeat this process for Expansion 1.2 (CTM8/GATM8
only).
CTM/GATM (4 and 8 port) Module-Specific Settings
Set as advised by the CO. Specify the duration of an
Open Switch Interval (OSI) before a call on a
supervised external line is considered disconnected.
This setting must match the setting for the line at the
central office (CO).
You must enable disconnect supervision by changing
the Line Trunk mode attribute.