NEC SL1000, Features And Specifications Manual

Page: 42 / 588

Automatic Release
Description
Automatic Release drops the line circuit when an outside party abandons the call. For this feature to
work with Loop Start Trunks, the CO/PBX providing the outside line must provide a timed disconnect
signal. Automatic Release is normally provided on Ground Start, DID and ISDN trunks.
Conditions
• Automatic Release on ISDN trunks is provided by the protocol.
• When an outside line is accessed using a dedicated line key, the LED associated with the line key
goes off when Automatic Release occurs.
• On Loop Start trunks Automatic Release is only available on incoming calls.
• This feature functions while a call is in progress, on hold, or in a conference.
• This feature applies to all ICM type calls in progress, holding or parked.
• When Automatic Release occurs and the telephone is in handsfree mode, Speaker automatically
turns off. If using the handset, the station is set to idle when the handset goes on-hook.
Default Settings
None
System Availability
Terminals
Not applicable
Required Component(s)
None
Related Features
Central Office Calls, Answering
Central Office Calls, Placing
Guide to Feature Programming
Program
Number
Program Name Default
14-02-09 Analog Trunk Data Setup - Busy Tone Detection 0
14-02-14 Analog Trunk Data Setup - Loop Start/Ground Start 0
80-04-01 Call Progress Tone Detector Setup - Detection Level Type 1 (DT) = 0 (-25dBm)
Type 2 (BT) = 0 (-25dBm)
Type 3 (RBT) = 0 (-25dBm)
Type 4 = 0
Type 5 = 0
80-04-02 Call Progress Tone Detector Setup - Min. Detection
Level Type 1 (DT) = 15 (-25dBm)
Type 2 (BT) = 15 (-25dBm)
Type 3 (RBT) = 15 (-25dBm)
Type 4 = 0
Type 5 = 0
ISSUE 1.0 SL1000
A
Automatic Release 1-34