Real-Time

An operating mode in which the information to be handled is sent, processed, and returned in a time interval that is short relative to the...

A-GPS (Assisted-Global Positioning System)

A-GPS (Assisted-Global Positioning System) is a system that often significantly improves the startup performance—i.e., time-to-first-fix (TTFF)—of a...

Location by-value

In the context of location information to support IP based emergency services, a PIDF‐LO containing the location of an IP end‐point that can be...

Central Office

A telephone switching center that contains the equipment to provide phone service to users in a particular geographic area. A central office may...