Network card; computer network hub; Network router; Network gateway router; computer network bridge; Strong wave antenna; Communication server; Communication apparatus, namely, mobile phone; Communication device, namely, wireless communication devices for voice, data or image transmission; Wireless telecommunication base station; Radio receiver; Radio transmitter; electrical wave booster for enlarging electronic signals; transceiver, namely, wireless signal transceiver; Signal booster, namely, cell phone signal booster; Satellite antenna; Video phone; downloadable computer software for management of wireless routers; Aerials