A telephone is a telecommunications device that permits two or more users to conduct a conversation when they are too far apart to be easily heard directly...

Telephone phobia (telephonophobia, telephobia, phone phobia) is reluctance or fear of making or taking phone calls, literally, "fear of telephones". It...

Téléphone (French pronunciation: [telefɔn]) was a French rock band formed in 1976. Their first, self-titled album was released in 1977; by the end of...

A telephone number is a sequence of digits assigned to a landline telephone subscriber station connected to a telephone line or to a wireless electronic...

known as the National Telephone Numbering Plan, which is the system for assigning telephone numbers to subscriber stations. Telephone numbers are of variable...

A telephone exchange, also known as a telephone switch or central office, is a crucial component in the public switched telephone network (PSTN) or large...

cellphone) is a portable telephone that can make and receive calls over a radio frequency link while the user is moving within a telephone service area, as opposed...

dialing (ISD) codes, or most commonly, telephone country codes are telephone number prefixes for reaching telephone subscribers in foreign countries or areas...

of the telephone chronicles the development of the electrical telephone, and includes a brief overview of its predecessors. The first telephone patent...

A telephone directory, commonly called a telephone book, telephone address book, phonebook, or the white and yellow pages, is a listing of telephone subscribers...