The first telephone call was made on March 10, 1876, by Alexander Graham Bell. Bell demonstrated his ability to "talk with electricity" by transmitting a call to his assistant, Thomas Watson. The first words transmitted were … See more

Some types of calls are not charged, such as local calls (and internal calls) dialed directly by a telephone subscriber in Canada See more

Preceding, during, and after a traditional telephone call is placed, certain tones signify the progress and status of the telephone call: See more

• Rabinow, J., U.S. patent 2,813,154 - "Telephone call indicator"—November 12, 1957 See more

A telephone call may carry ordinary voice transmission using a telephone, data transmission when the calling party and called party are using See more

A typical phone call using a traditional phone is placed by picking the phone handset up off the base and holding the handset so that the … See more

Unsolicited telephone calls are a modern nuisance. Common kinds of unwanted calls include prank calls, telemarketing calls, and obscene phone calls.
Caller ID provides some protection against unwanted calls, but can still be turned off by the calling party. … See more