MULTI-USERS REAL-TIME TRANSCODING SYSTEM AND METHOD FOR MULTIMEDIA SESSIONS

摘要

A method an system forestablishing a multi-user communication session,having a session description, between terminalswith incompatible media characteristics, inwhich users with terminals having incompatiblemedia characteristics are invited to participatein the communication session. A transcodingsession is set up for enabling transcodingbetween the incompatible media characteristicsof the terminals based on information aboutthe terminals of the users having accepted theinvitation, this information comprising themedia characteristics of the users' terminals.The session description is established accordingto the transcoding session and, during thecommunication session, media streams from theterminal of one user are transcoded according tothe transcoding session and the transcoded mediastreams are transmitted according to the sessiondescription to the other users participating inthe communication session, using the mediacharacteristics of the terminals of those otherusers.