NEC SL1000 Features And Specifications Manual page 232

SL1000
Operation
To disconnect a busy trunk:
Multiline Terminal
1. Press line key for trunk.
- OR -
Dial trunk access code (#9 + trunk number).
You hear busy tone. Trunk numbers are 001~126 .
2. Dial the Service Code (724 ).
F
You hear confirmation beeps as the system disconnects the trunk.
You can now place a call on the free trunk.
3. Press the line key for the trunk disconnected in Step 2.
- OR -
Dial the trunk access code (#9 + trunk number) for the trunk disconnected in Step 2.
Single Line Telephone
1. Dial trunk access code (#9 + trunk number).
You hear busy tone. Trunk numbers are 001~126 .
2. Dial Service Code (724 ).
You hear confirmation beeps as the system disconnects the line.
3. Hookflash.
You can now place a call on the free line.
4. Dial the trunk access code (#9 + trunk number) for the trunk disconnected in Step 2.
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ISSUE 1.0
Forced Trunk Disconnect