voice on internet protocol

voip means voice on internet protocol is a general term for a family of transmission technologies for delivery of voice communications over IP networks such as the Internet or other packet-switched networks. Other terms frequently encountered and synonymous with VoIP are IP telephony, Internet telephony, voice over broadband (VoBB), broadband telephony, and broadband phone.
VoIP systems usually interface with the traditional public switched telephone network (PSTN) to allow for transparent phone communications worldwide
VoIP systems employ session control protocols to control the set-up and tear-down of calls as well as audio codecs which encode speech allowing transmission over an IP network as digital audio via an audio stream. Codec use is varied between different implementations of VoIP (and often a range of codecs are used); some implementations rely on narrowband and compressed speech, while others support high fidelity stereo codecs.

voip :- voice on internet protocol
voip through skype
click here to log on to official website of skype
download the skype and enjoy to call and chat with your skupe friend.
voip through google
click here to log on to gtalk. Download gtalk and try to call and chat with your gmail friends.
now google provide video chat also
voip through yahoo.
click here to download yahoo massenger make an account and call or chat with your yahoo friend