Abstract: A system for transmitting a wide variety of communications between a wide variety of end user devices via IP networks, including delivering voice quality calls over IP networks between conventional telephones. The system allows end users to change or augment the format for communication, for example between email, chat, voice and video, by simply selecting an icon or button. The communications may also be redirected between the various end user devices and to a message storage center that can store the message in a variety of formats, providing various messaging options. One or more packet managers that receive, transmit and process digital signals control the various communications, providing for users a seamless communication experience traversing the PSTN and IP networks.