Bell codes, buzzer codes or Communication Signal Appliance codes entail a series of bells or buzzers used on passenger trains for communication between...

A bell character (sometimes bell code) is a device control code originally sent to ring a small electromechanical bell on tickers and other teleprinters...

such as Bell and Huntington Park. Area code 213 was one of the original North American area codes of 1947 and 323 was created in an area code split of...

to enter the section. This communication traditionally takes place by bell codes and status indications transmitted over a simple telegraph wire circuit...

incumbent local exchange carrier in the NPA is Bell Canada. Almost all Toronto Bell Canada landlines have area code 416, with 647-numbers allocated disproportionately...

The railway block signalling bell code is a system of bell sounds used in Great Britain to communicate between manually operated Signal Boxes in implementing...

telegraph code. Its first commercial use was in the Teletype Model 33 and the Teletype Model 35 as a seven-bit teleprinter code promoted by Bell data services...

Area codes 714 and 657 are telephone area codes in the North American Numbering Plan (NANP) for the southern part of the U.S. state of California. The...

Bell Gardens (also in the 213/323 area code) Bellflower Cerritos (small portion in the 657/714 area code) Commerce (mostly in the 213/323 area code)...

form of blasts on alarm bells, sounds on the ship's whistle or code names paged over the PA system. Alpha, alpha, alpha is the code for a medical emergency...

Calling Being Introduced In Bell System, Bell Laboratories Record 38(12) p.470 (December 1960) "Numbering Resources: NPA (Area) Codes". NANP. Neustar. Archived...

Alexander Graham Bell (/ˈɡreɪ.əm/ ; born Alexander Bell; March 3, 1847 – August 2, 1922) was a Scottish-born Canadian-American inventor, scientist, and...

adding more control codes. An explicit SPC (space) character was introduced, in place of the BLANK/NULL, and a new BEL code rang a bell or otherwise produced...

Montreal area. Area code 263 was added to the overlay in October 2022. The incumbent local exchange carrier (ILEC) in the service area is Bell Canada. The major...

3B. "Area code 786 is coming to the Florida Keys". Bell South. The Stuart News (Stuart, Florida). September, 1 2001. p. 9. "NANP Area Code History: 1998"...

Nokia Bell Labs, commonly referred to as Bell Labs, is an American industrial research and development company owned by Finnish technology company Nokia...

Numbering Plan area codes North American Numbering Plan Mabbs, Ralph (Winter 1947–1948). "Nation-Wide Operator Toll Dialing—the Coming Way". Bell Telephone Magazine...

assignment of area codes is shown in the following tabulation. This method of arrangement, which is known to have been in use at Bell Laboratories, shows...

Dialing (company guide). New Jersey Bell. 1961-03-26. p. 2. "New Jersey Bell customers will begin using area codes". Red Bank Register. 1963-06-20. "About...

country codes are telephone number prefixes for reaching subscribers in foreign countries or areas by international direct dialing (IDD). Country codes are...

The 25-pair color code, originally known as even-count color code, is a color code used to identify individual conductors in twisted-pair wiring for telecommunications...

there are 33 control characters, such as code 7, BEL, which rings a terminal bell. Procedural signs in Morse code are a form of control character. A form...

Taco Bell Corp. is an American multinational chain of fast food restaurants founded in 1962 by Glen Bell (1923–2010) in Downey, California. Taco Bell is...

Morse code is a telecommunications method which encodes text characters as standardized sequences of two different signal durations, called dots and dashes...

splitting the area code, Southern Bell (later BellSouth, now part of AT&T Inc.) decided to introduce interchangeable central office codes, effective 1 October...

Area codes 902 and 782 Area codes 506 and 428 Area code 709 Area codes 418 and 581 Area codes 819 and 873 Area codes 705 and 249 Area code 807 Bell Canada...

Bell Canada areas in the Northwest Territories. Ontario and Quebec were the only Canadian provinces that received assignments of multiple area codes from...

Area codes 703 and 571 are telephone area codes in the North American Numbering Plan (NANP) for Northern Virginia, including the independent cities of...

from local calls. The Bell System design choice was 1, but since 113 was in use for directory assistance, along with other 11x codes ("Repair" was 114)....

Korn at Bell Labs in the early 1980s and announced at USENIX on July 14, 1983. The initial development was based on Bourne shell source code. Other early...