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.
Doro PhoneEasy 110 Duo Cordless Phone - DECT - Black - Cordless - Corded - 300 m Range - 1 x Telephone Line(s) - 2 x Handset(s) - Hands-free Speakerphone - Hearing Aid Compatible