Telephone n. : An instrument for reproducing sounds, especially articulate speech, at a distance.

Telephone v. t. : To convey or announce by telephone.

Example:


Taxonomy
telephones, patent, transmitter, the line, bell, wire, receiver, ringer, Alexander Graham Bell, Thomas Edison, DC current, circuit, telegraph, the user, exchanges, telephone networks, telephone exchange, diaphragm.

Defination from the web:
... symbols used to designate telephone service or phone-related information in print, signage, and other media include ℡(U+ 2121), (U+ 260E), (U+ 260F), and (U+ 2706) ... Credit for the invention of the electric telephone is frequently disputed, and new controversies over the ...