Emergency Dialing (E9-1-1)

Topic Last Modified: 2012-06-11

Enhanced 9-1-1 (E9-1-1) is an emergency notification system that associates the calling party’s telephone number with a physical address. By using this physical address or location information, a Public Safety Answering Point (PSAP) can immediately dispatch emergency services to the caller in distress. Traditional 9-1-1 service associates a telephone number only with its billing address, which may not be the location where the emergency call originates. For example, an organization may occupy a large building or a series of buildings. By deploying an E9-1-1 system, an organization can provide the exact location of the emergency call, such as the building, floor, and conference room, to the appropriate PSAP.

You can support E9-1-1 as part of a Microsoft Lync Server 2010 Enterprise Voice deployment by using a SIP trunk connection to an E9-1-1 routing service from a qualified E9-1-1 service provider, or by using an Emergency Location Identification Number (ELIN) gateway that connects to your public switched telephone network (PSTN) carrier.

Lync Server 2010 currently supports E9-1-1 only in the United States.