CELLULAR TELEPHONES, PERSONAL DIGITAL ASSISTANTS, COMPUTERS, WIRELESS DATA MODEMS, DATA MODEMS, RADIO RECEIVERS, RADIO TRANSMITTERS, TELEVISION TRANSMITTERS, TELEVISION RECEIVERS, ANTENNAS, VIDEO CONFERENCING EQUIPMENT, NAMELY, COMMUNICATION EQUIPMENT FOR PROVIDING VIDEO COMMUNICATION BETWEEN TWO OR MORE PARTIES, TELECOMMUNICATION INFRASTRUCTURE, NAMELY, BASE STATIONS, MOVABLE BASE STATIONS, TELECOMMUNICATION EQUIPMENT, PROCESSORS, SWITCHES, SYSTEMS, ANTENNAS, NETWORKS, RECEIVERS, TRANSMITTER...