Context: A videoconference system is generally higher cost than a videophone and deploys greater capabilities. A videoconference (also known as a videoteleconference) allows two or more locations to communicate via live, simultaneous two-way video and audio transmissions. This is often accomplished by the use of a multipoint control unit (a centralized distribution and call management system) or by a similar non-centralized multipoint capability embedded in each videoconferencing unit. Again, technology improvements have circumvented traditional definitions by allowing multiple party videoconferencing via web-based applications.

Question: What is a video-conference also known as?
Answer: videoteleconference

Question: What does a video-conference use that allows communication in live situations?
Answer: a multipoint control unit

Question: What is a multi-point control unit?
Answer: call management system

Question: How does video-conferencing allow multiple parties to communicate with each other?
Answer: web-based applications

Question: How many locations can one use videoconferencing for?
Answer: two or more

Question: What is a web-based application more expensive than?
Answer: Unanswerable

Question: How does a videophone allow live communication?
Answer: Unanswerable

Question: What is a videophone also known as?
Answer: Unanswerable

Question: How many locations can you use a videophone in?
Answer: Unanswerable

Question: What have videophones allowed by going around traditional definitions?
Answer: Unanswerable