|Loop keys simplify answering and placing calls.|
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 INTERCOM and dialing 90 for Line Group 90, the user can just press the Switched Loop key and dial 0 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.
[<3.03] 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.
[3.05] For incoming calls, the Fixed Loop key provides an appearance for any line in the Fixed Loop line group, that is not assigned to a line key, for which the extension has access and ringing.
[3.05] When assigning an appearance for a call, the system will choose a Fixed Loop key only if the line is a member of the group to which the key is assigned and no line keys are available. In prior releases, the system could select a Fixed Loop key even if the line involved was not a member of the key's line group.