(a) Explain what Voice over Internet Protocol (VoIP) is. [2] (b) State two advantages of using VoIP instead of a traditional telephone system. [2] (c) Expla...
Question 1 Report
(a) Explain what Voice over Internet Protocol (VoIP) is.
[2]
(b) State two advantages of using VoIP instead of a traditional telephone system.
[2]
(c) Explain one disadvantage of VoIP.
[2]
Answer Details
(a) Voice over Internet Protocol (VoIP) is a technology that allows voice communication (telephone calls) to be made over the Internet. [1] It works by converting analogue voice signals into digital data packets, which are transmitted over the network and converted back to analogue sound at the receiving end. [1]
(b) Two advantages of VoIP over traditional telephone systems:
- Lower cost, especially for international calls, because calls travel over the Internet rather than through dedicated telephone networks, avoiding long-distance charges. [1]
- VoIP often includes additional features such as video calling, screen sharing and instant messaging at no extra cost, which traditional phone lines do not offer. [1]
(c) One disadvantage: call quality depends entirely on the quality and speed of the Internet connection. If bandwidth is low or the connection is unstable, calls may suffer from poor audio quality, delays, or be dropped entirely. [1] Unlike traditional landlines, VoIP also does not work during Internet or power outages. [1]
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