TREE-BASED BROADCASTING SERVICE OVER PUSH-TO-TALK MOBILE IP NETWORK

摘要

A method for generating a plurality of messages for inviting communication devices to a communication conference comprises:establishing a first communication conference with a plurality of first communication devices,receiving a plurality of communication device identifiers from a communication device participating in the first communication conference, which communication device identifiers identify the communication devices to be invited to at least a second communication conference,determining the communication devices from the plurality of the communication devices, which are already involved in the first communication conference,generating messages for inviting communication devices to a communication conference only for those communication devices which are not involved in another communication conference.