What describes the real-time nature of VoIP?

The real-time nature of Voice over Internet Protocol (VoIP) is best characterized by two-way audio transmission. This means that VoIP technology enables users to communicate with each other in real time, allowing for a conversation to flow naturally as both parties can send and receive audio signals simultaneously. The responsiveness of audio during a VoIP call is essential for effective communication, mimicking traditional phone conversations where both individuals can speak and listen at the same time without significant delay.

Other options, while related to modes of communication, do not capture the essence of real-time interactions in VoIP. Delayed transmission implies a lag or pause that could disrupt the fluidity of conversation. Text exchanges suggest a different mode of communication that is inherently asynchronous, meaning it doesn’t occur in real-time. Unidirectional video transfer refers to a one-way flow of video, which also does not support the interactive quality of conversation inherent in VoIP services. Therefore, two-way audio transmission accurately represents the core feature of real-time communication in VoIP.