US Patent 9549154 Multipoint communication system and method

A multipoint communication server for establishing multipoint communication between a plurality of endpoints, the multipoint communication server comprising: a data repository containing the set of endpoints identifiers wherein each endpoint identifier corresponds to a participating endpoint, a media processing unit configured to receive an upstream media stream from an emitting endpoint, the media processing unit being further configured to generate a plurality of downstream media streams for the participating endpoints, wherein the data repository further contains a replication inhibition set which consists of a subset of the set of endpoint identifiers and comprises at least the endpoint identifier of the emitting endpoint, wherein the media processing unit is configured to generate the downstream media stream for each participating endpoint whose endpoint identifier belongs to the replication inhibition set so that the downstream media stream does not replicate the upstream media stream.