Method and a system for establishing a communication channel between a first communication device, or alternatively, a communication network operator, and one or more second communication devices. The identity of the one or more second communication devices is not pre-determined by the first communication...http://www.google.es/patents/US6115605?utm_source=gb-gplus-sharePatente US6115605 - Communication system and device using dynamic receiver addressing
Communication system and device using dynamic receiver addressing
