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On the other hand, VoIP has imposed significant new challenges in providing the same call-identifying and wiretapping capabilities as those that exist in traditional circuit-switched networks.
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For example, the use of VoIP has made it much easier to achieve confidentiality and anonymity in voice communications. The proliferation of VoIP calls has significant implications on the security and privacy aspects of voice calls.
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VoIP is becoming increasingly popular due to its significant advantages in cost and flexible features compared with the plain old telephone system. Voice over Internet protocol is a technology that enables people to use the Internet, rather than the traditional public switched telephone network, as the transmission medium for voice communications.
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