Buzzword in the Internet community, nowadays, is VoIP. A VoIP or broadband phone is like a regular phone except it uses a high speed internet to make call at a fraction of the cost or for free.
VoIP stands for Voice over Internet Protocol, which is phone service that uses broadband Internet connectivity to dial. You may be wondering whether or not VoIP is a reliable technology, particularly since it is fairly new.
VoIP is just as reliable as the Internet. Conventional phones are connected directly to telephone company phone lines, which in the event of a power failure are kept functioning by backup generators or batteries located at the telephone exchange. However, IP Phones and the IP infrastructure they connect to (routers and servers) typically depend on the availability of mains electricity or another locally generated power source.