Push-To-Talk

Home , Base station, GSM, LTE (telecommunication), Mobile radio

AT&T Push to Talk over Cellular & Interoperability into LMR networks Agenda

• Introduction

• Evolution

• Overview of Push to Talk over cellular

• Interoperability into LMR

• Use Cases

• Why a carrier solution vs. third party

Two Way Radios Cellular iDEN LTE Interoperability • AMPS • VHF, UHF, 800 & 900 • Integrated Digital • Long Term • LMR Commercial • GPRS Enhanced Network Evolution • Conventional Interoperability • Push to Talk • Community repeaters • GSM • Low Latency • One to One • Cellular PTT & LMR • Trunked • CDMA • One to Many • Down load 299mbs Talk Groups • Voice Calling • P25 • Voice Calling • Uploads 75mbs • GPS • Paging • VoLTE • IP interoperability to • Motorola & Harris • TDMA allow all types • Testing/SMS • WiDEN – 90kbs • Simultaneous voice • Kenwood communications • Applications and data • E F Johnson & Tait • Slow data networks including video • Supports Multicast

Why organizations select carriers for Push-to-Talk

Cost Savings • More economical solution than traditional Land Mobile Radio Systems for non-life saving dispatch traffic. • More economical solution than cellular phone usage. Providing both intra and inter agency two-radio service. • More economical and more comprehensive solution for managing assets and non-life saving radio traffic than traditional Land Mobile Radio systems.

Improving Workforce Performance • Employees are more productive by staying off the phone and on task due to the nature of push-to-talk conversations versus cellular conversations. • ATT ePTT calls last an average of 30 seconds. • ATT cellular calls last as average of 2 minutes. • Provides instant one-to-one or one-to-many private two-way radio conversations between staff members.

Provides a broadband platform for adding additional ‘Field Force Automation’ tools for remote workers.

Ecosystem on cellular PTT

Superior User Scalability Devices Accessories Experience

•RSM • Fast call setup times •1000 Contacts •Android •100 talk groups •iOS •Wired • Sub-second latency •250 users per talk group •Windows •Wireless • View real-time • 30 users per ad hoc talk •Tablets •Surveillance presence/status of group •Feature Phones your talk group •Talk Group Scanning •Specially built devices •Headsets members •Talk Group Camping •IS •Inter-enterprise (shared) •Hands free car kits • Supervisory override •Non Camera talk group calls 1-to-1; •Lockbox functionality •3 yr. warranty One-to-Many •2D barcode •Non locked • Utilize 3G, 4G, LTE •Privacy Modes •RFID and Wi-Fi •Instant Personal Alerts •Wi-Fi Only •Desktop base station • Web based Admin •Dispatch for PC w/GPS Tools •Loan worker •Charging Stations

Corporate Admin Tool

• IE 7, 8 or 9 Web access, anytime, • Firefox 8; Chrome 15 anywhere • Safari 5 • Up to 1K groups; 250 per group Efficient assignment • Up to 5,000 users per CAT of contacts & groups • Supports 1000 external contacts • PC desktop users Support mobile • Integrated dispatch users & desktop users • Tablet licensed users

Corporate mode • Limit users to create contacts to manage users • Limit users to create groups The Corporate Admin Tool • Restrictive mode gives you fast and flexible control of your EPTT user's Control & flexibility • Supervisory override of your enterprise devices from wherever • Manage all EPTT device apps you are. • Add & assign external contacts

6 Integrated Dispatch

Talkgroup Features • Monitor up to 8 Groups • One-to-One Simultaneously • Talk Group Camping • One-to-Many • Instant Personal Alerts

Locate Fleet Members

7 Commercial Interoperability

Interoperability enables the connection between PTT and disparate push -to-talk systems (Two-Way Radio or cellular) near seamless interoperation between multiple networks.

Customer Benefits –Preserve capital investment of radios and AT&T EPTT phone networks by linking them together –Extends coverage between radios and AT&TEPTT phones to the entire ATT nationwide network. –Improved productivity and response time with existing radio and AT&T EPTT work groups communicating. –Existing smart phone& feature phone users can now access radio talk groups.

8 Interoperability

Sample Architecture

EPTT & LMR Interoperability Sample Architecture

•

9 Use Cases

Non Mission Critical Investigations / Under cover Coordination of logistics and keep non- Undercover officers who cannot carry a critical traffic off the LMR network while radio due to the nature of their work but leveraging interoperability for critical talk need to quickly respond and coordinate group calling and multijurisdictional

Push-to-Talk Command Staff Other Gov Depts. Augment communications for staff that do Increase capacity and elevate not carry radios day to day. Allow for quick congestion on existing LMR networks communication to all departments via by moving non public safety traffic to interop. Extend coverage outside radio PTT over cellular network.

10 Summary

Why Push to Talk from a carrier

 More than 30+ certified devices  Purpose built Feature Phones (LTE & WiFi)  Purpose built accessories (car kits, charging solutions, audio accessories)  Geo Diversified and Redundant Service  Ongoing Roadmap  Broadcast  CSSI and RSSI interoperability  API & Web RTC  LTE QoS  Talkgroup scanning with priority  End to End Customer Service and Training