Ключевые слова:
Telephones, Telephone equipment, Communication equipment, Telecommunication systems, Radiotelephony, Portable, Radio links, Telephone networks, Marking, Instructions for use, Telephony, Radiocommunication, Telecommunication, Telephone receivers, Telephone transmitters, Speech transmission systems, Noise (spurious signals), Reception, Sensitivity, Volume (sound), Circuits, Testing conditions, Test equipment, Analysis of variance, Performance testing, Performance, Electric pins, Numerical designations, Sound intensity, Voltage, Electric current, Electrical wave measurement, Impact testing, Acoustic measurement, Signal level, Cordless telephone equipment