ARRL Technician Practice Exam

What is meant by Voice Over Internet Protocol (VoIP) as used in amateur radio?

1. A method of transmitting Morse code over the Internet

2. A method of delivering voice communications over the Internet using digital techniques

3. A method for sending text messages via radio

4. A protocol for live streaming on the Internet

The correct answer is: A method of delivering voice communications over the Internet using digital techniques

Voice Over Internet Protocol (VoIP) refers to a technology that enables voice communication to be transmitted over the Internet using digital techniques. This involves converting analog audio signals into digital data packets that can be sent over the Internet and then converted back into audio at the receiving end. This process allows for efficient and often high-quality voice communication, making it a popular choice in amateur radio for connecting operators over long distances. In the context of amateur radio, VoIP facilitates communication without the constraints of traditional analog transmission methods, allowing operators from various locations to communicate as if they were on a conventional phone call, but using the Internet rather than a traditional phone line or radio frequency. The other options mentioned do not accurately capture the essence of VoIP. For example, sending Morse code or text messages does not involve the voice component, which is central to VoIP. Similarly, while live streaming on the Internet involves transmitting audio or video, it does not specifically pertain to voice communications in the way that VoIP does.