Matches in DBpedia 2015-10 for { <http://dbpedia.org/resource/Choke_exchange> ?p ?o }
- Choke_exchange abstract "A choke exchange is a telephone exchange designed to limit the effect of high numbers of simultaneous call attempts to that exchange. Typical phone numbers on choke exchanges include radio station talk radio caller and contest lines and event ticket vendors.Based on typical call volumes, two exchange buildings might only have 800-1000 connections for an entire prefix of 10,000 numbers, based on historical averages that about 8% of all lines are in use at one time. A choke exchange differs in that it has a much higher connection formula, and more reliability in the event of severely high call volumes.The choke exchange is connected to other exchanges in such a way that even high call volume will be handled through the choke connection rather than overwhelming the rest of the local telephone network. Other local exchanges have a limited number of direct trunks (junctions) to the choke exchange, which may only serve one or more customers like a radio station contest line, which may experience a large number of simultaneous calls. But instead of calls being overflowed to main or tandem routes shared with other calls, the unsuccessful callers receive the reorder tone from their local or local tandem exchange. If the calls were overflowed to the tandem route, the caller would receive busy tone from the exchange serving the radio station, and the sudden peak would disrupt calls between other customers.With common-channel signaling (CCS), like Signalling System No. 7, separate choke exchanges may not be required for these customers.Examples of choke exchanges in North America have included: (202) 432-#### in Washington, DC (205) 741-#### in Birmingham, Alabama (206) 421-#### in Seattle, Washington (213) 520-#### and (818) 520-#### in Los Angeles, California (214) 787-#### in Dallas, Texas (215) 263-#### in Philadelphia, Pennsylvania (216) 578-#### in Cleveland, Ohio (225) 499-#### in Baton Rouge, Louisiana (312) 591-#### in Chicago, Illinois (313) 298-#### in Detroit, Michigan (337) 920-#### in Lafayette, Louisiana (414) 799-#### in Milwaukee, Wisconsin (415) 478-#### in San Francisco, California (416) 870-#### and (416) 872-#### in Toronto, Ontario (501) 433-#### in Little Rock, Arkansas (502) 571-#### in Louisville, Kentucky (504) 260-#### in New Orleans, Louisiana (512) 390-#### in Austin, Texas (513) 749-#### in Cincinnati, Ohio (514) 790-#### in Montreal, Quebec (585) 222-#### in Rochester, New York (604) 280-#### in Vancouver, British Columbia (613) 750-#### in Ottawa, Ontario (614) 821-#### in Columbus, Ohio (615) 737-#### in Nashville, Tennessee (651) 989-#### in Minneapolis/St. Paul, Minnesota (704) 570-#### in Charlotte, North Carolina (713) 390-#### in Houston, Texas (714) 977-#### in Orange County, California (716) 644-#### in Buffalo, New York (817) 787-#### in Fort Worth, Texas (901) 535-#### in Memphis, Tennessee (919) 860-#### in Raleigh-Durham, North Carolina↑ ↑ 2.0 2.1 2.2 2.3 ↑ 3.0 3.1".
- Choke_exchange wikiPageID "13386184".
- Choke_exchange wikiPageLength "5161".
- Choke_exchange wikiPageOutDegree "78".
- Choke_exchange wikiPageRevisionID "649307882".
- Choke_exchange wikiPageWikiLink Area_code_202.
- Choke_exchange wikiPageWikiLink Area_code_205.
- Choke_exchange wikiPageWikiLink Area_code_206.
- Choke_exchange wikiPageWikiLink Area_code_213.
- Choke_exchange wikiPageWikiLink Area_code_214.
- Choke_exchange wikiPageWikiLink Area_code_215.
- Choke_exchange wikiPageWikiLink Area_code_216.
- Choke_exchange wikiPageWikiLink Area_code_225.
- Choke_exchange wikiPageWikiLink Area_code_312.
- Choke_exchange wikiPageWikiLink Area_code_313.
- Choke_exchange wikiPageWikiLink Area_code_337.
- Choke_exchange wikiPageWikiLink Area_code_414.
- Choke_exchange wikiPageWikiLink Area_code_415.
- Choke_exchange wikiPageWikiLink Area_code_416.
- Choke_exchange wikiPageWikiLink Area_code_501.
- Choke_exchange wikiPageWikiLink Area_code_502.
- Choke_exchange wikiPageWikiLink Area_code_504.
- Choke_exchange wikiPageWikiLink Area_code_512.
- Choke_exchange wikiPageWikiLink Area_code_513.
- Choke_exchange wikiPageWikiLink Area_code_514.
- Choke_exchange wikiPageWikiLink Area_code_585.
- Choke_exchange wikiPageWikiLink Area_code_604.
- Choke_exchange wikiPageWikiLink Area_code_613.
- Choke_exchange wikiPageWikiLink Area_code_614.
- Choke_exchange wikiPageWikiLink Area_code_615.
- Choke_exchange wikiPageWikiLink Area_code_651.
- Choke_exchange wikiPageWikiLink Area_code_704.
- Choke_exchange wikiPageWikiLink Area_code_713.
- Choke_exchange wikiPageWikiLink Area_code_714.
- Choke_exchange wikiPageWikiLink Area_code_716.
- Choke_exchange wikiPageWikiLink Area_code_817.
- Choke_exchange wikiPageWikiLink Area_code_818.
- Choke_exchange wikiPageWikiLink Area_code_901.
- Choke_exchange wikiPageWikiLink Area_code_919.
- Choke_exchange wikiPageWikiLink Area_codes_214,_469,_and_972.
- Choke_exchange wikiPageWikiLink Area_codes_215_and_267.
- Choke_exchange wikiPageWikiLink Area_codes_281,_346,_713,_and_832.
- Choke_exchange wikiPageWikiLink Area_codes_415_and_628.
- Choke_exchange wikiPageWikiLink Area_codes_416,_647,_and_437.
- Choke_exchange wikiPageWikiLink Area_codes_512_and_737.
- Choke_exchange wikiPageWikiLink Area_codes_514_and_438.
- Choke_exchange wikiPageWikiLink Area_codes_613_and_343.
- Choke_exchange wikiPageWikiLink Area_codes_615_and_629.
- Choke_exchange wikiPageWikiLink Area_codes_657_and_714.
- Choke_exchange wikiPageWikiLink Area_codes_682_and_817.
- Choke_exchange wikiPageWikiLink Area_codes_704_and_980.
- Choke_exchange wikiPageWikiLink Area_codes_747_and_818.
- Choke_exchange wikiPageWikiLink Area_codes_919_and_984.
- Choke_exchange wikiPageWikiLink Austin,_Texas.
- Choke_exchange wikiPageWikiLink Baton_Rouge,_Louisiana.
- Choke_exchange wikiPageWikiLink Birmingham,_Alabama.
- Choke_exchange wikiPageWikiLink Buffalo,_New_York.
- Choke_exchange wikiPageWikiLink Busy_signal.
- Choke_exchange wikiPageWikiLink Busy_tone.
- Choke_exchange wikiPageWikiLink Category:Telephone_exchange_equipment.
- Choke_exchange wikiPageWikiLink Category:Telephone_numbers.
- Choke_exchange wikiPageWikiLink Category:Telephone_numbers_in_Canada.
- Choke_exchange wikiPageWikiLink Category:Telephone_numbers_in_the_United_States.
- Choke_exchange wikiPageWikiLink Charlotte,_North_Carolina.
- Choke_exchange wikiPageWikiLink Chicago.
- Choke_exchange wikiPageWikiLink Chicago,_Illinois.
- Choke_exchange wikiPageWikiLink Cincinnati.
- Choke_exchange wikiPageWikiLink Cincinnati,_Ohio.
- Choke_exchange wikiPageWikiLink Cleveland.
- Choke_exchange wikiPageWikiLink Cleveland,_Ohio.
- Choke_exchange wikiPageWikiLink Columbus,_Ohio.
- Choke_exchange wikiPageWikiLink Common-channel_signaling.
- Choke_exchange wikiPageWikiLink Dallas.
- Choke_exchange wikiPageWikiLink Dallas,_Texas.
- Choke_exchange wikiPageWikiLink Detroit.
- Choke_exchange wikiPageWikiLink Detroit,_Michigan.
- Choke_exchange wikiPageWikiLink Fort_Worth,_Texas.
- Choke_exchange wikiPageWikiLink Houston.
- Choke_exchange wikiPageWikiLink Houston,_Texas.
- Choke_exchange wikiPageWikiLink Lafayette,_Louisiana.
- Choke_exchange wikiPageWikiLink Little_Rock,_Arkansas.
- Choke_exchange wikiPageWikiLink Los_Angeles.
- Choke_exchange wikiPageWikiLink Louisville,_Kentucky.
- Choke_exchange wikiPageWikiLink Memphis,_Tennessee.
- Choke_exchange wikiPageWikiLink Milwaukee.
- Choke_exchange wikiPageWikiLink Milwaukee,_Wisconsin.
- Choke_exchange wikiPageWikiLink St._Paul,_Minnesota.
- Choke_exchange wikiPageWikiLink Minneapolis–Saint_Paul.
- Choke_exchange wikiPageWikiLink Montreal.
- Choke_exchange wikiPageWikiLink Montreal,_Quebec.
- Choke_exchange wikiPageWikiLink Nashville,_Tennessee.
- Choke_exchange wikiPageWikiLink New_Orleans.
- Choke_exchange wikiPageWikiLink New_Orleans,_Louisiana.
- Choke_exchange wikiPageWikiLink Orange_County,_California.
- Choke_exchange wikiPageWikiLink Ottawa.
- Choke_exchange wikiPageWikiLink Ottawa,_Ontario.
- Choke_exchange wikiPageWikiLink Philadelphia.
- Choke_exchange wikiPageWikiLink Philadelphia,_Pennsylvania.
- Choke_exchange wikiPageWikiLink Raleigh-Durham,_North_Carolina.
- Choke_exchange wikiPageWikiLink Reorder_tone.