Editing Project 25 (section)

== Adoption ==
Adoption of these standards has been slowed by budget problems in the US; however, funding for communications upgrades from the [[Department of Homeland Security]] usually requires migrating to Project 25. It is also being used in other countries worldwide including Australia, New Zealand, Brazil,<ref>{{cite web|url=https://www.teleco.com.br/tutoriais/tutorialprojeto25/default.asp|title=P25 in Brazil - Tutorial by Dr. Cristiano Torres do Amaral from Brazilian Police Academy|access-date=4 March 2020}}</ref> Canada, India and Russia.<ref name="urgentcomm">[http://urgentcomm.com/mag/radio_finally_ps_year/ Is this finally P25's year?], Interview with Don Pfohl of Project 25 and Bill Belt of Telecommunications Industry Association's wireless division, 1. May 2005</ref> As of mid-2004 there were 660 networks with P25 deployed in 54 countries.<ref name="urgentcomm"/> At the same time, in 2005, the European [[Terrestrial Trunked Radio]] (TETRA) was deployed in sixty countries, and it is the preferred choice in Europe, China, and other countries.<ref name="urgentcomm"/> This was largely based on TETRA systems being many times cheaper than P25 systems ($900 vs $6,000 for a radio)<ref name="urgentcomm"/> at the time. However P25 radio prices are rapidly approaching parity with TETRA radio prices through increased competition in the P25 market. The majority of P25 networks are based in Northern America where it has the advantage that a P25 system has the same coverage and frequency bandwidth as the earlier analog systems that were in use so that channels can be easily upgraded one by one.<ref name="urgentcomm"/> Some P25 networks also allow intelligent migration from the analog radios to digital radios operating within the same network. Both P25 and TETRA can offer varying degrees of functionality, depending on available radio spectrum, terrain and project budget.

While interoperability is a major goal of P25, many P25 features present interoperability challenges. In theory, all P25 compliant equipment is interoperable. In practice, interoperable communications isn't achievable without effective governance, standardized operating procedures, effective training and exercises, and inter-jurisdictional coordination. The difficulties inherent in developing P25 networks using features such as digital voice, encryption, or trunking sometimes result in feature-backlash and organizational retreat to minimal "feature-free" P25 implementations which fulfill the letter of any Project 25 migration requirement without realizing the benefits thereof. Additionally, while not a technical issue per se, frictions often result from the unwieldy bureaucratic inter-agency processes that tend to develop in order to coordinate interoperability decisions.

=== Naming of P25 technology in regions === 
* [[Government radio networks in Australia|Statewide P25 systems in Australia]] were deployed using the name Government Radio Network (GRN) in [[New South Wales]], [[South Australia]], and [[Tasmania]]; Government Wireless Network (GWN) in [[Queensland]]; Territory Radio Network (TRN) in the [[Australian Capital Territory]]; and  Melbourne Metropolitan Radio (MMR) and Rural Mobile Radio (RMR) in [[Victoria (state)|Victoria]].<ref>{{Cite web|url=https://www.motorolasolutions.com/en_xa.html|title=Home - Motorola Solutions Australia & New Zealand|website=www.motorolasolutions.com}}</ref><ref>{{cite web |url=http://www.mingara.net.au/project/qld-gwn |url-status=dead |archive-url=https://web.archive.org/web/20170218183124/http://www.mingara.net.au/project/qld-gwn |archive-date=2017-02-18 |title=Queensland Government Wireless Network}}</ref><ref>{{Cite web|url=https://www.esta.vic.gov.au/mmr|title=Metropolitan Mobile Radio|date=January 24, 2017|website=www.esta.vic.gov.au}}</ref><ref>{{Cite web|url=https://www.radioreference.com/apps/db/?stid=152|title=Victoria Scanner Frequencies and Radio Frequency Reference|website=www.radioreference.com}}</ref> In New South Wales, the GRN is now called the Public Safety Network (PSN).<ref>{{Cite web|url=https://www.nsw.gov.au/telco-authority/public-safety-network|title=Public Safety Network|website=www.nsw.gov.au|date=7 February 2022 }}</ref>