Push to Talk (PTT) is a half-duplex communication technology allowing instant voice messaging with the press of a button. One-to-one and one-to-many communication. One talks and the others have to listen. It is widely used as a mobile app or integrated into radio (PoC radio).
Push to talk services provide the best national coverage for users via the current mobile broadband network. The speeds increase significantly in comparison to the Land Mobile Radio (LMR) and traditional walkie talkie, which relies on smaller networks.
In 2020, Donny Jackson wrote an article on UrgentComm about LMR licensing. The article marked the lowest of LMR licensing for public safety after the steady decline for 7 consecutive years. Push to talk over cellular is replacing the popular LMR systems for many industries. Certainly, it is one of the main voice professional communication method. American City & County held a webinar sponsored by AT&T in 2016 to state the explosive growth of ptt solutions in the country.