An originator of an AAR or an ARS call can be:
An attendant
A telephone user
A remote access user
A data terminal with a keyboard
An incoming tie trunk group from a subtending location
An incoming intertandem tie-trunk group, at a server or a switch
An incoming access tie trunk group that links a remote main server or a switch to a tandem server or a switch
When the system determines the FRL of the call originator, the system uses the FRL that is assigned to the COR of:
A telephone user
All incoming tie trunk groups
An attendant group for attendant-extended calls
The individual attendant, if Individual Attendant Access is assigned
The data module that is associated with a data terminal
The barrier code that a user dials for a remote access call
If the remote access call does not require a barrier code, no FRL exists.