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 Comfort 4005 Cordless Phone - DECT - Black - 1 x Telephone Line(s) -
Answering Machine - Speakerphone - Hearing Aid Compatible - Backlit
Display
The Doro Comfort 4005 is ideal if you want both a corded and a cordless
phone. Together, they make a perfect set. Because the DECT base unit is
integrated into the corded phone, this solution offers a smaller charging
cradle for your cordless handset than most. Both handsets are comfortable
to hold and offer clear, crisp sound thanks to Doro's TrueSound quality.
The corded phone has a 'boost' button for anyone who wants to increase the
volume. Other features include an easy-to-read white backlit display, an
answering machine, a hands-free speakerphone, an intercom function, call
transfer between handsets, and much more.