IP Telephony or VOIP (Voice over Internet Protocol) technology allows the convergence of voice and data communication technologies. This allows the integration of desktop applications to be enabled on the telephone. It enables new e-Business applications such as Web-enabled customer care and Contact Center. It allows Unified messaging solutions allowing voice, email, Fax and video integration. It increases mobility and accessibility to information with Web, wired, wireless or Teleworker applications. It also simplifies your voice and data administration and management with Plug and Play installation for lower TCO. Another useful capability is the real time collaboration feature that increases productivity with simple "point and click" video and audio conferencing applications, secure corporate instant messaging and file and document transfer. Business users that take advantage of these features will be able to propel their business forward and retain their competitive edge.