The Latest P25 Trunking Systems list is now available from the Project 25 Technology Interest Group (PTIG).

The last list was published in November of 2021. Since then there have been 148 new P25 Systems identified with 106 in the USA and 42 International.

The complete list can be reviewed and downloaded using the link below

 P25 Trunking Systems List February 2023

Thanks to Ken Brown for his continued updates on this database

• The Overall system count is down (1183 to 1171) primarily due to consolidations with smaller stand-alone systems merging into larger regional and statewide systems
• Migration continues from P25 Phase 1 to P25 Phase 2 Systems
• Public Safety, Federal Agencies, and Military are the largest user groups
• 700, 800 MHz, and Federal/Military UHF (380- 420 MHz) remain the primary P25 trunking frequency bands in use.

The Project 25 Technology Interest Group (PTIG) is pleased to offer the latest updated version of the P25 Steering Committee Approved list of P25 Standards Documents.

The document can be viewed and downloaded using the link below.

P25 TIA Standards Documents SC Approved February 2023

Join PTIG at IWCE 2023 for the Latest P25 News and Technology Update.

• Join us at IWCE for a 3 hour P25 Workshop (Three 1 hour panels back to back) and two other P25 panels of interest.
• Visit the Project 25 Technology Interest Group Booth (2139).  Bring your questions and meet with P25 User agency directors and engineers from our P25 Industry members and consultants.
• See all the new P25 Products and services from 22 PTIG member Booths on the show floor.

IWCE 2023 

Conference: March 27 - 30 

Exhibits: March 29-30 

Las Vegas Convention Center 

Use thislinkfor registration! 

P25 New Standards, Capabilities, and Security for 2023 and Beyond

 Tuesday March 28 11:30 - 12:30 Room N257

Learn what's new for Project 25 in 2023 and beyond including: New P25 Link Layer Security Standards (Cyber Security for P25 Control Channels and Unit IDs), A new "GPS location on every PTT" Standard for P25 subscriber units and a new Multi-vendor "User ID alias" capability to share the user-name for each unit across multiple systems and talk groups.

Strong interest in Communications Security and Encryption is growing. Review the new P25 Link Layer Standards, P25 User Authentication Standards, and improved, interoperable, AES Key Management. Explore P25 testing resources including the DHS CAP program and Independent Labs.

P25 on Steroids: Get the most out of your P25 System

Tuesday March 28 1:45 – 2:45 Room N257

A panel of veteran P25 System Administrators and policy planners will offer a first-hand view of their experience with P25 technology. A description of their P25 Systems, architecture, and governance models will be shared. A detailed look at individual best practices and lessons learned to maximize interoperability, performance, and cost-effective communications for their member agencies will be offered. Requirements for local agencies to join the P25 systems and for manufacturers to offer P25 compliant products on the system will be described.

Case Studies will Include: Miami-Dade County FL, State of Ohio MARCS, State of Texas System of Systems, New Zealand Nationwide System, and the US Department of Defense.

P25 Questions…..Ask the Experts

Tuesday March 28 3:30 – 4:00 Room N257

This panel offers access to the leaders of Project 25 through an "Open Forum" question and answer session. Our distinguished panel is able to answer your burning questions on P25 Technology including topics like…

• How can my P25 system be linked to another?
• Can P25 assure Interoperability with agencies that roam into my system for Mutual Aid?
• What Cyber Security and encryption is available to protect my P25 System?

Our panel of Experts:

James Downes, Chair of the Project 25 Steering Committee and Chief of the Federal and International Emergency Communications Branch of DHS CISA.

Andy Davis, Chair of the TIA TR-8 Engineering Committee. This TIA Committee manages the P25 Standards development process. He is the P25 Manager for Motorola Solutions

Jeremy Elder, Director of Product Management for L3Harris

Scott Wright, Telecommunications Engineer 2 with the Connecticut Department of Emergency Service and Public Protection. He serves on the P25 Steering Committee, and is co-Chair of the P25 User Needs Working Group

Cindy Cast, Radio Systems Manager, Miami-Dade County. She is currently Chair of the Project 25 Technology Interest Group, Chair of the State of Florida Communication Interoperability Working Group and the Florida Southeastern Regional Domestic Security Task Force.

Nina Boe, Radio System Administrator & Program Manager for the Pennsylvania State Police PA-STARNet system.  She serves on several committees and groups, including: Project 25 Technology Interest Group (PTIG), P25 Steering Committee, Federal Partnership for Interoperable Communications (FPIC) participating in the ISSI/CSSI Working Group & the Security Subcommittee.

Future PTT Harmony Through P25 LMR-LTE Interworking

Wednesday March 29 10:15 – 11:15 Room N257

The session begins with a Whitepaper by SAFECOM/NCSWIC that details LMR LTE Interworking on the air today in multiple P25 Systems.  Then the latest 2023 update for LMR LTE Interworking Standards from the TIA TR-8.8 subcommittee (responsible for P25 Standards) and The Alliance for Telecommunications Industry Solutions (ATIS) will be presented. This Working Group is developing guidelines for MCPTT inter-working between P25 LMR and LTE systems.  Learn about User considerations for extending existing P25 systems with LMR/LTE Interworking. This will include: Supported feature-sets from P25 (ISSI/CSSI/etc), as well as Encryption, User device, & Cybersecurity considerations.

New Technologies for P25 Testing and Compliance

Wednesday March 29 1:15 – 2:15 Room N257

As Project 25 technology and Standards have evolved over the last 30 years, new P25 Testing Technology has kept pace with a broad array of testing products, services, labs and compliance assessment programs. These services are currently available to help users protect their Critical Infrastructure and guide the procurement, application, and maintenance of their P25 Systems.

The session will begin with a P25 Consultant offering an overview of the testing options available and the important considerations for testing during procurement, deployment and ongoing maintenance for P25 Systems. A new concept that allows Subscriber Radios to be tested automatically, "over the air" will be presented. Multiple P25 "Network linked" Test solutions for the P25 Inter-System (ISSI) and Console (CSSI) testing will be shown. "In Building" Coverage test solutions for P25 will be explained. And finally, the latest P25 capable test equipment for service shops, field analysis, and laboratory testing with SW based auto test capabilities will be profiled.An update on testing compliance through the DHS CAP will be included including the new ISSI and CSSI interoperability testing regimes.

Visit the Project 25 Technology Interest Group Booth (2139).  Bring your questions and meet with P25 User agency directors and engineers from our P25 Industry members and consultants.

See all the new P25 Products and services from 22 PTIG Members

on the show floor.

The Project 25 Technology Interest Group (PTIG) held it’s Annual Meeting on Thursday October 27^th

The meeting was presided over by: Cindy Cast, Chair PTIG, and Radio Systems Manager- Miami Dade County Florida, Steve Nichols, Executive Director, Project 25 Technology Interest Group, and Cheryl Giggetts, Treasurer PTIG, and Principal- CTA Consultants.

A Board of Directors and slate of Officers were elected including some returning members and two new members from the P25 Community.

The Officers for the coming 2021-2022 year include: Chair: Cindy Cast, Radio Systems Manager: Miami Dade County; Vice Chair: Jim Holthaus, USDOJ; Treasurer: Cheryl Giggetts, Principal, CTA Consultants; Secretary: Andy Davis, Motorola Solutions, Chair TIA TR-8.

Incoming New PTIG Board Members Include: Dave Collette, IT Manager, Public Safety System; Nebraska Office of the CIO and Ronald E. Williscroft, City of Winnipeg, Fire Paramedic Service, Director of 911 Communications; APCO Canada, Board of Directors

                            Dave Collett                                                       Ron Williscroft

Returning PTIG Board Members Include: Rick Schmahl, MARCS Program Director and SWIC, State of Ohio; Siralal Mallawa Arachchi, Principal Technical Advisor, New Zealand Police, Nina Boe, Chief, Radio Applications & Networks, P25 System Administrator & Program Manager: Pennsylvania State Police; Amy Lawrence, Marketing Program Manager, Viavi Solutions; Michael Schafer, President, Compliance Testing; Nick Pennance, Chief Revenue Officer, Tait; Robert Kwapisz, LMR Solutions Manager, Zetron (a Codan Company); Rich Cagle, Chief Growth Officer, Mission Critical Partners; Brad Stoddard, State of Michigan; Brandon Diemer BLM NIFC; John Richards, State of Maine; Scott Wright, State of Connecticut;; Justin Evans, Montgomery County TX; Mark Ketchum, City of Broken Arrow OK; Sonia Kendall, US Coast Guard;; Doug Chapman; Etherstack; Robin Grier, Catalyst; Dominick Arcuri, Televate; Jeremy Elder L3Harris.

A number of PTIG Board Members retired this year including: Chris Maiers, State of Iowa and Eddie Reyes, Prince William County VA.  They are recognized and thanked for their years of loyal participation and service to P25 and PTIG.

PTIG welcomed three new Commercial Members over the past year.  Mission Critical Partners, ADCOMM Engineering, and ADCOM Technologies all joined the group.  In addition Zetron, a Codan Company, and L3 Harris both upgraded their membership to “Founder Level”  

Commenting on the previous year’s activities, Stephen Nichols, PTIG Director stated; “We emerged from the COVID fog with renewed energy, strong conference & trade show activity, and increased participation and interest in Project 25. Our Mission continues with the development and sharing of information about P25 Standards, Benefits, Applications, and Market. Thanks go to our member companies and P25 agency representatives for their continued loyal support and participation. The Primary Focus during the past year has been to, celebrate our 30th Anniversary accomplishments, to offer updates on new P25 Standards including their applications & benefits to Public Safety & government, and to reinforce the need for continued funding and development for P25”.

The Project 25 Technology Interest Group meets via web MS Teams Meeting on the 4^th Thursday of each month at 3:30 PM Eastern.  If you would like to become a member, contact Stephen Nichols: This email address is being protected from spambots. You need JavaScript enabled to view it.