AEG, Alcatel, Ascom, BBC Kokusai, Bosch, Dantronic, detewe, Ericsson, General Electric, Grundig (Plettac), icom, Kenwood, Köpenik, Kyodo, Maxon, Motorola, Niros, Philips, sel, Simoco, standard, storno, Tait, Teletron Pfitzner, Yaesu (Ricoh),
ANT, DeTeMobil, DeTex, Multitone, NEC, Panasonic, Swissphone, Telearm, Telefunken, Telecom, Thomson,