Final answer:
Digital radios are the technology that permits transmission of standard messages, such as 'arriving on the scene,' in a condensed form. This is facilitated by the conversion of voice signals into digital data, which enables more reliable communication.
Step-by-step explanation:
The technology that permits transmission of standard messages, such as 'arriving on the scene,' by pushing a key to transmit the message in condensed form is known as digital radios. Digital radios can send pre-set messages, which are useful for communication scenarios where speed and clarity are essential. Unlike analog radios, digital radios convert voice signals into digital data, typically a sequence of binary ones and zeros, which enables more efficient and reliable transmission.
Cell phones utilize similar digital data principles but are designed for a wider range of communication capabilities rather than providing a quick push-to-send option for standardized messages. This functionality of cell phones stems from their ability to tune to various microwave frequencies and to transition smoothly between cells to maintain a stable connection.