The PS/ALI service allows private switch owners to connect directly with the 9-1-1 network. This enables management of station locations with precision, accuracy, and specificity down to the floor, room or even cubicle level. When a PBX customer with direct inward dialing (DID) or a Centrex type system enters into an agreement to subscribe to PS/ALI, they work with the 9-1-1 public safety answering point (PSAP) to load specific station telephone number information and address information into the 9-1-1 database. Once the trunks to the 9-1-1 network are in place and the information is loaded into the 9-1-1 database, all 9-1-1 calls placed from the impacted stations are routed to the appropriate PSAP. The station information is then displayed to the PSAP, which automatically knows from which building, floor and room number the call is being made. Emergency vehicles are then dispatched appropriately.
CenturyLink CPE Public Safety Solutions
CenturyLink is a single source for networking, hardware, software, service and database maintenance for 911 solutions. CenturyLink has built strategic alliances with recognized leaders in public safety hardware and database maintenance services. Their skills, combined with CenturyLink's advanced network capabilities, provide the Public Safety Answering Points (PSAPs) with exceptional information accuracy and detail. 911 Solutions include products such as Basic 911, Enhanced 911, Emergency Transport Backup (ETB), Private Switch/Automatic Location Identification (PS/ALI), Cell Trace and Cell Trace Plus.