Project 25 Technology Information Group

Monday, October 26, 2020

Project 25 Technology Information Group

P25 for the Future Panel Presentation and P25 Update from IWCE


The Project 25 Technology Interest Group is pleased to publish  "P25 for the Future" a 45 minute video panel presentation.  The video was presented by PTIG as part of the virtual IWCE conference and can now be viewed in  it's entirety using a Youtube link.


Get a latest update on the Project 25 Standards and LMR-LTE Interworking presented by Andy Davis from Motorola Solutions and Chairman TIA TR-8.  See an LMR-LTE interworking concept model from Jeremy Elder L3Harris. Also hear from Jim Downes, from DHS CISA and the Chairman of the Project 25 Steering Committee, on the Steering Committee's priorities and focus going forward as well as significant new P25 Outreach and education documents now available.  Finally hear from Cindy Cast of Miami Dade County and Brad Stoddard of the State of Michigan on their P25 systems and why P25 remains the primary Mission Critical PTT service for their agencies.


Speakers and topics covered by the panel are below:

 Project 25 For the Future



Steve Nichols, Director PTIG

Meeting Agenda and Introductions, Project 25 Technology Interest Group (PTIG) Overview

P25 Resources & Documents Available, P25 Benefits.

Andy Davis Senior Resource Manager, Project 25, MOTOROLA SOLUTIONS, Chairman TIA TR-8

P25 Standards Update and Priorities of Future Work in Process. ATIS/TIA WG: Interworking between P25 LMR and First Net

Jeremy Elder Director, Product Management, L3HARRIS Corporation

LMR-LTE Concept Model for Interworking Applications

Jim Downes Chief Federal Emergency Communications Section, DHS CISA & Chair of P25 Steering Committee

P25 Steering Committee Priorities: ISSI/CSSI Interoperability- Linking P25 Systems, KMF/KFD Encryption Key Interoperability, P25 Education and Outreach, P25 Testing + CAP Update from Sridhar Kowdley DHS CAP Program.

Brad Stoddard Director Michigan Public Safety Communications System (MPSCS) Michigan SWIC

Cindy Cast Radio Systems Manager Miami Dade County FL

P25 Users Update: Why P25 remains the primary Public Safety Grade PTT technology.   P25 Sharing = Cost Savings and Interoperability, P25 and COVID response.

The Project 25 Technology Interest Group (PTIG) is pleased to share information on an upcoming Webinar from one of our member companies.

Freedom Communications, an Astronics Company, is offering an upcoming Webinar on P25 fundamentals and testing in P25 Phase 1 Conventional Communication systems. Through technical presentation and live demonstration, you will learn to setup a Freedom Test Instrument to capture and analyze critical radio equipment performance measurements.

A live Q&A session will give you the opportunity to further solidify your grasp of the widely used P25 communications standard.

This webinar will be held on Friday October 9th 12:00 to 1:00 PM EDT.

Registration for the Webinar can be found using the link below.



PTIG Announces New Statement of P25 User Needs (SPUN)


The Project 25 Technology Interest Group (PTIG) is pleased to share the new Statement of P25 User Needs (SPUN), developed by the Project 25 Steering Committee with support from the Cybersecurity and Infrastructure Security Agency (CISA) and participation from the TIA TR-8 Engineering Committee. This comprehensive document supersedes the earlier Project 25 Statement of Requirements (P25 SOR), last revised in December 2013.

The SPUN defines the current P25 systems model, system components, interfaces, services, capabilities, and features from a user-needs perspective. It also includes descriptions of P25 voice, data, security, location, and subscriber management services as well as interfaces, infrastructure, consoles, and subscriber units. A series of appendices list specific identified P25 user needs by capability and hardware type.

In its introduction, the SPUN states that it “provides land mobile radio (LMR) users with an overview of P25 Standards and a framework for identifying and defining their communications needs” and “high-level explanations of P25 system architecture, features, and functions.” It also offers “a framework for users to review, identity, and effectively communicate their needs to those involved in the standards-development process.”

In other words, the SPUN provides P25 practitioners with both a clearer understanding of P25 standards and systems and a means for assessing their agencies needs related to P25 and having those needs addressed by P25 standards developers.

While most P25 systems do not include all the services, features, and capabilities described in this document, and not all services, features, and capabilities listed in the user needs tables are addressed by current P25 Standards, the SPUN provides a much-needed update of the P25 SOR, a single source of essential information about P25, and a glimpse of the capabilities that may lie in P25’s future.

PTIG would also like to thank the members of the P25 Steering Committee support team from Booz Allen Hamilton, who were essential in the development of the SPUN.  

The full SPUN document can be found at link.


P25 Statement of P25 User Needs (SPUN)


PTIG Publishes latest CSSI Non CAP Interoperability Test Results from Bosch Telex and Motorola Solutions 

The Project 25 Technology Interest Group (PTIG) has published the latest CSSI Non CAP Interoperability Test Report. The testing was done between a Telex C-Soft P25 Console and a Motorola Solutions Astro P25 RFSS.

The information contained in the report has been provided by the suppliers of the products with permission to make the information publicly available. The Project 25 Technology Interest Group (PTIG) is making this information available as a public service.

If you have questions regarding the testing please contact the signatories to the test report using their email found on the General Information tab of the report.

A copy of the report can be downloaded using the link below:


Bosch Telex - Motorola Solutions Non-CAP CSSI Interoperability Test September 2020

P25 Latest New Products and Services for 2020


The Project 25 Technology Interest Group (PTIG) is pleased to offer a presentation of the latest P25 New Products and Services for 2020  from PTIG Members.


Find out What's New, How it will improve P25 Interoperability and How it will benefit Public Safety and other P25 Users Groups. 


Categories Include:

  • P25 Mobile and Portable Radios
  • P25 Repeaters and Aircraft Radios
  • P25 Consoles
  • P25 System Capabilities, Elements, and Antennas
  • P25 Testing and System Support Services
  • P25 Vocoder Software.

The Slides Include:

  • What is new about the Product or Service
  • How it improves Interoperabiloity
  • What are the benefits to Public Safety 

The full presentation can be downloaded using the link below


P25 New Products and Services for 2020





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