message 124 transits the internet 30 u2032 to its destination say pc 28 of fig1 where software decodes the audio message 124 rings the telephone 28 and provides an analog audio signal for telephone 28 corresponding to audio signal 122 generated at telephone instrument 17 u2032 in a second embodiment of the invention the system of fig1 may be further configured to provide an inherent call back capability though it uses the same conferencing software described above call back can be between just two parties essentially each pc station is set up so it can serve as a u201c conference meister u201d no other special software or hardware need be installed on a station 39 s pc only the initiating station requires a pc or other access to the internet a suitably programmed touchtone phone can be used to access the internet without the use of a computer such as the pc the two party call back feature sets up the call via the internet with the conversation taking place on the normal telephone system in a manner substantially the same as that described above for conferencing referring to fig2 a participating pc call back station shows a display chart 40 on its monitor the display chart.