VoIP technology offers a phone service based on packet-switching networking, giving VoIP more advantages than traditional circuit-switched voice transmission lines. A phone service using VoIP costs less than the traditional services. The amount of space used during a call using circuit-switching is large enough to hold multiple calls using VoIP. VoIP uses less space and thus, costs less.
Some cost savings are due to using a single network to carry voice and data, especially where users have existing under-utilized network capacity they can use for VoIP at no additional cost. Also, because VoIP is digital, it may offer features and services that are not available with a traditional phone. If you have a broadband internet connection, you don't need to maintain and pay the additional cost for a line just to make telephone calls. VoIP facilitates some things that are difficult with traditional phone networks like automatically routing incoming calls to a VoIP phone irrespective of its location to the network.
A VoIP phone can be taken on a trip, connected on the Internet and local calls can be received. Call center agents using VoIP phones can work from anywhere with a sufficiently fast Internet connection. VoIP phones can integrate with other services available over the Internet, including sending and receiving messages or data files in parallel with the voice conversation and audio conferencing.
