NEC 1093099 Manuel D’Utilisation

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Loop keys are Feature Keys that simplify the way extension users place and answer outside calls. There are 
two types of loop keys: Switched Loop keys and Fixed Loop keys.

For incoming calls, Switched Loop keys provide an appearance for any line not assigned to a line key for 
which the extension has access and ringing. Switched Loop keys insure that there is a visual appearance for 
lines that do not ring an extension’s line keys.

For outgoing calls, Switched Loop keys provide convenient access to Line Groups. For example, instead of 
pressing 

 and dialing 90 for Line Group 90, the user can just press the Switched Loop key and 

dial 

 instead.

For outgoing calls, a Fixed Loop key is a loop key assigned to a specific Line Group. When the extension 
user presses the Fixed Loop key for an outgoing call, they get the first line in the group assigned to the key.

For incoming calls, the Fixed Loop key works just like a Switched Loop key. It provides an appearance for 
any line not assigned to a line key for which the extension has access and ringing.

When multiple calls ring an extension simultaneously, the system services the ringing calls in the follow-
ing order:

Ringing Intercom call

Line or loop key (from lowest to highest)