Lucent Technologies 8.2 User Manual

Issue 1

April 2000

Features and technical reference 

1411

Listed Directory Numbers 

Line Lockout occurs when:

■

A user does not hang up after the other party on a call is disconnected.

The user receives the dial tone for 10 seconds and then receives the 
intercept tone for the length of time administered in Line Intercept Tone 
Timer on the Feature-Related System Parameters screen. If the handset 
remains off-hook, the telephone is taken out of service.

■

A user pauses for 10 seconds between digits while dialing.

The user receives intercept tone for 30 seconds. If the handset remains 
off-hook, the telephone is taken out of service.

The out-of-service condition remains in effect until the user hangs up.

■

The out-of-service condition provided by Line Lockout does not tie up 
switching facilities.

■

Line Lockout does not apply to multiappearance telephones.

See 

‘‘Feature-Related System Parameters’’ on page 632

, Time Before Off-hook 

Alert for more information. 

Listed Directory Numbers (LDN) has two capabilities that allow outside callers to 
access your attendant group, depending on the type of trunk used for the incoming 
call. You use one capability to allow attendant group access via incoming direct 
inward dial (DID) trunks. You use another capability to allow attendant group 
access via incoming central office (CO) and foreign exchange (FX) trunks. 

The system routes both incoming DID calls and incoming FX and CO calls to an 
attendant group, depending on how you administer the trunks.