Trunk Busy Out - Panasonic KX-NS1000 Manual

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2.5.4 Trunk Call Features

2.5.4.6 Trunk Busy Out

Description
The PBX can monitor the loop current sent through analogue trunks, preventing users from seizing trunks
where a loop current is not detected. When loop currents are not detected, trunks are set to Busy Out status,
and become unable to make or receive calls. A trunk in Busy Out status cannot be used for making calls as a
TIE line, as part of a trunk group, or with the ARS feature, and cannot receive trunk calls. If a user tries to seize
a trunk set to Busy Out status, the user will hear a reorder tone.
This is useful if some or all trunks are occasionally unavailable because of problems with the external
telecommunications environment.
Conditions
This feature is not available for the following LCOT cards:
KX-NCP1180NE (LCOT4)
KX-TDA0181NE (LCOT16)
KX-TDA0180NE (LCOT8)
KX-TDA0183NE (LCOT4)
Loop current detection is performed on active trunks whenever the trunk is seized and/or at fixed intervals.
When a trunk is in busy-out status, loop current detection is performed at fixed intervals, returning the trunk
to in-service status once a loop current is detected. An extension assigned as the manager can manually
change the trunk back to in-service status.
Trunk status changes are recorded in the error log of the PBX.
Busy Out status is maintained even when the PBX is reset.
Busy Out status is cleared when:
a call is successfully received (i.e., a loop current is detected) on that trunk.
the S-CO button for that trunk is pressed and a loop current is detected.
PC Programming Manual References
9.25 PBX Configuration—[1-1] Configuration—Slot—Port Property - LCO Port—
10.6.1 PBX Configuration—[2-6-1] System—Numbering Plan—Main—Features—
10.7.1 PBX Configuration—[2-7-1] System—Class of Service—COS Settings—Manager—
10.9 PBX Configuration—[2-9] System—System Options—Option 5—
CO
Feature Guide References
5.1.6 Manager Features
User Manual References
2.1.6 Allowing Users to Seize an Unavailable Outside Line (Trunk Busy Out)
102
Feature Guide
Busy Out Status
Busy Out Cancel
Manager
Busy Out—Busy Out for Analogue

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