Phase 2 in wireless 911 refers to the delivery of which type of location data?

• A. Delivery of a wireless 911 call with the approximate location of the device.
• B. Delivery of a wireless 911 call with tower location.
• C. Delivery of a landline 911 call.
• D. Delivery of a wireless 911 call with exact GPS coordinates.

Answer: (C)

Phase II provides precise location data for a wireless 911 call, typically the device’s exact GPS coordinates or other highly accurate positioning. This goes beyond Phase I, which only identifies the cell site or tower transmitting the call. Having accurate coordinates helps responders locate the caller quickly, especially if the caller can’t provide a location or is in an unsafe place. The data can come from GPS on the handset or network-based methods, with accuracy generally within tens to hundreds of meters depending on conditions. The other descriptions map to Phase I data or to non-wireless situations, so they don’t represent the enhanced location information delivered in Phase II.