Voice over IP (VoIP) is the convergence of Internet technology and mobile telephones that offers low-cost voice communication services. It is still in its infancy but has a potential to be adopted by masses in the future, as the technology matures. VoIP is a technology that is used to make telephone calls using a broadband internet connection instead of a regular phone line. There are some services that allow the users to make calls to other people with the same service; other services allow the user to make calls to any number (FCC Web site). VoIP traffic can be deployed on any IP network. It also includes the ones not having connection with the rest of the Internet such as local area network (LAN) (Wikepedia.org).
Key Terms in this Chapter
Asynchronous Transfer Mode: Network transmission technology supporting voice, video, and data
Session Initiation Protocol (SIP): Provides SIPS communications between communication servers
Line and Trunk Gateways: Provide connectivity to the public network
Voice-Over-Internet Protocol (VoIP): Voice-over-IP (VoIP) is the convergence of Internet technology and mobile telephone that offers low-cost voice communication services.
Communication Server: Provides call control, gateway control, service intelligence and other centralized functions
Signaling Point, Application Server: Enables the VoIP network to communicate with the Signaling System 7 network
Bearer Independent Call Control (BICC): A protocol used to manage voice traffic between communication servers
Session Initiation Protocol for Telephony: Provides SIPS communications between communication servers