Telephony refers to the technology and methods used for the transmission of voice and other forms of communication over long distances. It encompasses the equipment, protocols, and systems used for telephone communication.
OtterBox Defender Series Pro Case for Apple iPhone 17 Pro Max Smartphone - Textured Grip - Black - Retail - Bump Resistant, Shock Absorbing, Drop Resistant, Dust Resistant, Dirt Resistant, Scratch Resistant - Polycarbonate, Thermoplastic Elastomer (TPE) - Wireless Charging Compatible