Jackie Voss Manager, Global Standards Development ATIS All-IP Transition Initiatives December 9, 2014

ATIS Board of Directors’ Meeting October 20, 2011 NANC Meeting December 9, 2014 ATIS All-IP Program Service Transition ATIS/SIP Forum IP-NNI Joint Task Force IP Services Interconnect Focus Group Public Safety Related Applications Task Force Public Safety and Emergency Services Numbering and Routing Testbeds Reliability and Robustness Back Office Integration 2

ATIS Board of Directors’ Meeting October 20, 2011 NANC Meeting December 9, 2014 Policy Transition to All-IP All-IP Program Wireless and Fixed ArchitecturesPrivacy and Security Multimedia Emergency ServicesPublic Safety IP-Services Interconnection Communications APIs (ORCA) Architecture and Services Industry NumberingFCC Engagement on Numbering Inventory ManagementFCC Numbering Workshop Ordering and Billing SMS/800 Number Administration Information Infrastructure SynchronizationFCC Meetings on: Next Generation Interconnection- Rural Call Completion Network Reliability- Network Reliability Operational Excellence 3 Business Program View Technology View

ATIS Board of Directors’ Meeting October 20, 2011 NANC Meeting December 9, 2014 Service Transition Work ATIS is analyzing a basic set of services commonly provided in circuit switch PSTN, and addresses the technical issues surrounding support of these services in a mixed circuit switch/packet switch environment and, in the future, all- packet-switch environment. Output to include detailed call flows, new ISUP/SIP and TCAP/IP inter-workings and extensions to SIP in support of: Toll Free Calling LIDB Services CNAM Operator Based Services Priority Government Services 4

ATIS Board of Directors’ Meeting October 20, 2011 NANC Meeting December 9, 2014 ATIS/SIP Forum IP-NNI Joint Task Force In December 2013, ATIS and the SIP Forum launched the IP-NNI Joint Task Force to simplify voice IP interconnection: Defines reference architecture with functional entities necessary for IP-based interconnection. Defines the architecture for sharing NNI interconnection data; did not identify a single approach. Routing solutions fall into two broad categories: Mechanisms that build on structures in the North American Numbering Plan (NANP). Registry approaches independent of NANP structures. Interworking between different approaches specified. Drafts published for industry review/comment; 1Q 2015 target completion. 5

ATIS Board of Directors’ Meeting October 20, 2011 NANC Meeting December 9, 2014 IP Services Interconnect (IPSI) Focus Group The IPSI Focus Group identified the key obstacles and a strategy for enabling enriched IP services end-to-end across all service provider types. Work concluded in September 2014 with the publication of IP Services Interconnect Technical Report – Assessment of Requirements and Specifications, which:IP Services Interconnect Technical Report – Assessment of Requirements and Specifications Provided representative use cases for IP services to assess the standards coverage across the key technical areas including: session establishment and signaling; addressing and routing; and media handling. Presented conclusions and recommendations for each of these key technical areas to aid the industry in the development of detailed interconnect profiles. 6

ATIS Board of Directors’ Meeting October 20, 2011 NANC Meeting December 9, 2014 Public Safety Related Applications Task Force (PSRA TF) The PSRA TF, formed in April 2014, addresses the effects of the All-IP migration on the infrastructure associated with public safety, particularly key applications that are based upon legacy PSTN technologies and services. The TF identified relevant stakeholder organizations related to the following applications: Alarm circuits to local fire and police departments FAA circuits to towers and alarms Circuits that monitor railroad crossings Circuits for sensors at gas and power company locations Meter and alarming circuits related to power grid Circuits supporting underground communications 7

ATIS Board of Directors’ Meeting October 20, 2011 NANC Meeting December 9, 2014 Public Safety Related Applications Task Force (PSRA TF) The TF will take the findings from industry outreach to: Determine if prioritization of key applications is needed Identify if there are common issues impacting All-IP transition across industries Evaluate existing and potential solutions towards the publication of guidelines Identify opportunities for customer education regarding the All-IP transition Target completion: 1Q2015. In parallel, the TF is developing plans to share the final report with relevant interest groups and regulatory bodies. 8

ATIS Board of Directors’ Meeting October 20, 2011 NANC Meeting December 9, 2014 Public Safety and Emergency Services To address IMS-based public safety solutions that are natively designed for an All-IP environment, ATIS is: Supporting FirstNet to help ensure that its public safety LTE/3GPP requirements are being met; Developing standards to support Multimedia Emergency Services (MMES) for a full multimedia experience; and Creating a standard for mission critical Push to Talk voice interoperation between Land Mobile Radio and LTE systems. 9

ATIS Board of Directors’ Meeting October 20, 2011 NANC Meeting December 9, 2014 Numbering and Routing ATIS’ Industry Numbering Committee (INC) is in dialog with the FCC regarding numbering evolution for All-IP change. Recommendation for a consistent, nationwide user dialing experience (e.g., 7 digit, 10 digit, 1 plus 10 digit). Role of Rate Centers and LATAs including impact of Bill and Keep order. Determine the disposition and evolution of numbering systems. (e.g., LIDB, LERG, Number Portability Databases, ENUM). Decouple geography from numbering. Less-than-thousands-block number allocation. 10

ATIS Board of Directors’ Meeting October 20, 2011 NANC Meeting December 9, 2014 Testbeds ATIS identified the potential benefits of a common testbed support mechanism; effort launched November Industry transition initiatives are calling for testbeds to validate solutions for migration to All-IP (e.g., numbering evolution, IP-NNI routing, authenticated caller-ID) Individual testbeds duplicate many functions and are inefficient to implement and maintain Scope of Work (Target completion 1Q2015) Evaluate existing testbed activities and proposals to identify common requirements Determine if there would be value in combining separate activities into a common testbed support capability 11

ATIS Board of Directors’ Meeting October 20, 2011 NANC Meeting December 9, 2014 Reliability and Robustness ATIS has a central role in the FCC process regarding network reliability and robustness. With the transition to All-IP, this interaction is evolving to include the unique characteristics of these networks. ATIS conducts quarterly meetings with the FCC to review Network Outage Reporting System (NORS) data, identify trending issues, and proposed field-proven industry solutions. VoIP metrics have been added to the quarterly NORS review. The DS3 outage reporting criteria have been modified to account for the use of these facilities in IP applications. 12

ATIS Board of Directors’ Meeting October 20, 2011 NANC Meeting December 9, 2014 Back Office Integration Today, IP interconnection agreements are completed on a customized, bilateral basis. ATIS is extending the standard ordering process used by the PSTN to include All-IP connections and services. ATIS’ partnership with the MEF on standardized forms for Ethernet ordering is an example of how ATIS is developing capabilities required for the scalable transition to All-IP. ATIS is evaluating how to evolve the Access Services Ordering Guidelines (ASOG), the most widely deployed method for facility ordering between service providers. 13

ATIS Board of Directors’ Meeting October 20, 2011 NANC Meeting December 9, 2014 Questions? If you have any questions or comments, please contact: Jackie Voss Manager, ATIS Global Standards Development 14