Being digital, it delivers noise-free audio right to the limits of radio coverage. Optionally encryption that does not degrade the audio and is virtually impossible to crack, provides the users with total privacy.

Voice services on P25 are well suited to transport needs. However a standard developed with such a clear public safety user group in mind needs careful consideration when used for other applications. The P25 standard defines some strict over the air parameters and these set limitations on the data solutions that can be provided. This paper discusses the benefits and some of the areas that need to be considered when using P25 in a transport application.