APCO Module 4 - Telephony, Traditional Technology Questions And Answers

APCO Module 4 - Telephony, Traditional
Technology Questions And Answers

Wireless E911 Phase 1 - directs a wireless subscribers E911 call signal to the closest

tower

Receiver on tower has a number of its own, the P-ANI




P-ANI is used by wireless carrier to route the subscribers call to correct PSAP


identfies the cell site on PSAPs ALI display




wireless call signals also contain cellphones call back number




Wireless E911 Phase 2 requires addition to cellphones call back number and cell site,

the estimated location latitude and longitude of calling phone must be delivered to PSAP in

ALI display




Voice over Internet Protocol (VoIP) voice call via internet




MSAG master street address guide