scope:

The Alliance for Telecommunications Industry Solutions (ATIS) has a number of activities associated with facilitating the introduction of Next Generation 9-1-1 (NG9-1-1). These efforts are primarily being worked by three committees, with support from additional ATIS committees. The primary committees are the Emergency Services Interconnection Forum (ESIF), the Packet Technologies and Systems Committee (PTSC), and the Wireless Technology and Systems Committee (WTSC). ESIF is the primary driver for an effort that applies Common IMS to Next Generation emergency networks, specifically NG9-1-1. PTSC is the primary driver for the public switched telephone network (PSTN) transition to the IP Multimedia Subsystem (IMS). WTSC is the primary driver for specifying emergency services procedures for IMS originating networks. This document provides an overview of the ATIS standard ATIS-0700015, Implementation of 3GPP Common IMS Emergency Procedures for IMS Origination and ESInet/Legacy Selective Router Termination, developed by the ad hoc ATIS subcommittee IMSESINET¹, and its operational impacts on Public Safety.

The scope of ATIS-0700015 is to identify, and adapt as necessary, 3^rd Generation Partnership Project (3GPP) Common IMS emergency procedures for applicability in North America. It supports emergency communications originating from an IMS subscriber (fixed, nomadic, or mobile) and delivered to a National Emergency Number Association (NENA) i3 Emergency Services IP network (ESInet) or to a legacy emergency services network. The first version of ATIS-0700015 is limited to voice and Global Text Telephony (GTT²) communication. A future version of ATIS-0700015 will include Multimedia Emergency Services (MMES).

¹ The IMSESINET committee is an ad hoc committee chaired by WTSC and comprised of WTSC, PTSC, and ESIF.

³ This document is available from the Alliance for Telecommunications Industry Solutions (ATIS), 1200 G Street N.W., Suite 500, Washington, DC 20005 < https://www.atis.org/docstore/product.aspx?id=28140>.