Abstract: A method for simultaneous multi-party conversation, comprising steps of: (1) a calling party dialling a called party resulting in the voice signal of the calling party being directed into a computer of the calling party; (2) said computer transmitting the voice signal to a plurality of computers of called parties and activating several internet voice communication softwares of the called parties; (3) the voice signal of one of the called parties being received by the calling party; (4) then, the voice signal of the called party being transmitted to other called parties by a transforming device, thus achieving interconnection between the calling party and several called parties. Said method and system also comprise a step of conversation recordation. The invention also discloses a system for simultaneous multi-party conversation.

Abstract: The present invention provides a method for remote communication to realize the multi-user communication pattern, comprising: (1) linking at least one communication part of a plurality of communication devices via using expansion connection device; (2) connecting any plurality of communication devices of at least one communication part to communicate with communication devices of other parts by expansion connection device. In one embodiment of the invention, the method farther includes the step of recording contents of communication by record equipment. The method also comprises the step that any plurality of communication devices of at least one communication part converts communication signals by using expansion connection device before communicating to other parts. The present invention also provides one remote communication meeting system using the method for remote communication.

Abstract: An apparatus for multi-party conversation, used for transmitting and exchanging content of conversation, comprising an earphone socket, several connector lead wires and a print circuit plate, wherein the apparatus is connected with various communication devices via said several connector lead wires, and said each connector lead wire has an exchange circuit for control of the radio signals. Utilization of the apparatus increases the number of parties which are capable of joining the conversation simultaneously, and meets the demand of different type of communication devices for participating the multi-party conversation at the same time.

Abstract: A system for secret conversation and record of the present invention comprises a call-sending apparatus which has a function of sending and receiving calls; a call-receiving apparatus which has a function of sending and receiving calls and communicating with the call-sending apparatus; a record apparatus which can be outside connected to or inside set in the call-sending apparatus or the call-receiving apparatus to record and copy images or sounds wherefrom secretly; and a sound-controlled system which is connected with the call-sending apparatus or the call-receiving apparatus to monitor them when there is no person.