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- Vertical_service_code abstract "A vertical service code (VSC) is a special code dialed prior to (or instead of) a telephone number that engages some type of special telephone service or feature. Typically preceded with an asterisk, or * (star), key on the touch tone keypad and colloquially referred to as star codes, most are two digits in length; as more services are developed, those that use 2 or 3 as the first digit are sometimes three digits in length.In North American telephony, VSCs were developed by AT&T Corp. as Custom Local Area Signaling Services or CLASS codes (sometimes LASS) in the 1960s and 70s. Their use became ubiquitous throughout the 1990s and eventually became a recognized standard. As CLASS was an AT&T trademark, the term "vertical service code" was adopted by the North American Numbering Plan Administration. The use of the word "vertical" is a somewhat dated reference to older switching methods and the fact that these services can only be accessed by a local telephone subscriber, going up (or vertically) inside the local central office instead of out (or horizontally) to another telephone company.".
- Vertical_service_code wikiPageID "417914".
- Vertical_service_code wikiPageLength "7381".
- Vertical_service_code wikiPageOutDegree "56".
- Vertical_service_code wikiPageRevisionID "638844254".
- Vertical_service_code wikiPageWikiLink *57.
- Vertical_service_code wikiPageWikiLink *60.
- Vertical_service_code wikiPageWikiLink *61.
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- Vertical_service_code wikiPageWikiLink *74.
- Vertical_service_code wikiPageWikiLink *75.
- Vertical_service_code wikiPageWikiLink *77.
- Vertical_service_code wikiPageWikiLink *80.
- Vertical_service_code wikiPageWikiLink *81.
- Vertical_service_code wikiPageWikiLink *82.
- Vertical_service_code wikiPageWikiLink *85.
- Vertical_service_code wikiPageWikiLink *86.
- Vertical_service_code wikiPageWikiLink *87.
- Vertical_service_code wikiPageWikiLink *89.
- Vertical_service_code wikiPageWikiLink *98.
- Vertical_service_code wikiPageWikiLink AT&T_Corp..
- Vertical_service_code wikiPageWikiLink AT&T_Corporation.
- Vertical_service_code wikiPageWikiLink Anonymous_call_rejection.
- Vertical_service_code wikiPageWikiLink Asterisk.
- Vertical_service_code wikiPageWikiLink Call_blocking.
- Vertical_service_code wikiPageWikiLink Call_forwarding.
- Vertical_service_code wikiPageWikiLink Call_waiting.
- Vertical_service_code wikiPageWikiLink Caller_ID.
- Vertical_service_code wikiPageWikiLink Category:Calling_features.
- Vertical_service_code wikiPageWikiLink Category:North_American_Numbering_Plan.
- Vertical_service_code wikiPageWikiLink Category:Telephone_numbers.
- Vertical_service_code wikiPageWikiLink Category:Telephone_numbers_in_Canada.
- Vertical_service_code wikiPageWikiLink Category:Telephone_numbers_in_the_United_States.
- Vertical_service_code wikiPageWikiLink Continuous_redial.
- Vertical_service_code wikiPageWikiLink Dual-tone_multi-frequency_signaling.
- Vertical_service_code wikiPageWikiLink Landline.
- Vertical_service_code wikiPageWikiLink Last-call_return.
- Vertical_service_code wikiPageWikiLink Malicious_caller_identification.
- Vertical_service_code wikiPageWikiLink Mobile_dial_code.
- Vertical_service_code wikiPageWikiLink Mobile_phone.
- Vertical_service_code wikiPageWikiLink North_America.
- Vertical_service_code wikiPageWikiLink North_American.
- Vertical_service_code wikiPageWikiLink North_American_Numbering_Plan.
- Vertical_service_code wikiPageWikiLink North_American_Numbering_Plan_Administration.
- Vertical_service_code wikiPageWikiLink Pat_Fleet.
- Vertical_service_code wikiPageWikiLink Priority_call.
- Vertical_service_code wikiPageWikiLink Public_switched_telephone_network.
- Vertical_service_code wikiPageWikiLink Signalling_System_7.
- Vertical_service_code wikiPageWikiLink Signalling_System_No._7.
- Vertical_service_code wikiPageWikiLink Speed_calling.
- Vertical_service_code wikiPageWikiLink Telephone_company.
- Vertical_service_code wikiPageWikiLink Telephone_exchange.
- Vertical_service_code wikiPageWikiLink Telephone_number.
- Vertical_service_code wikiPageWikiLink Telephony.
- Vertical_service_code wikiPageWikiLink Touch_tone.
- Vertical_service_code wikiPageWikiLink Voice-mail.
- Vertical_service_code wikiPageWikiLink Voicemail.
- Vertical_service_code wikiPageWikiLinkText ""star"".
- Vertical_service_code wikiPageWikiLinkText "*".
- Vertical_service_code wikiPageWikiLinkText "*98".
- Vertical_service_code wikiPageWikiLinkText "CLASS code".
- Vertical_service_code wikiPageWikiLinkText "Custom Local Area Signaling Services".
- Vertical_service_code wikiPageWikiLinkText "Vertical service code".
- Vertical_service_code wikiPageWikiLinkText "code".
- Vertical_service_code wikiPageWikiLinkText "feature code".
- Vertical_service_code wikiPageWikiLinkText "special codes".
- Vertical_service_code wikiPageWikiLinkText "star 67".
- Vertical_service_code wikiPageWikiLinkText "star code".
- Vertical_service_code wikiPageWikiLinkText "the 'star' key".
- Vertical_service_code wikiPageWikiLinkText "vertical service code".
- Vertical_service_code wikiPageWikiLinkText "vertical_service_code ".
- Vertical_service_code hasPhotoCollection Vertical_service_code.
- Vertical_service_code wikiPageUsesTemplate Template:Empty_section.
- Vertical_service_code wikiPageUsesTemplate Template:FS1037C.
- Vertical_service_code wikiPageUsesTemplate Template:Main.
- Vertical_service_code wikiPageUsesTemplate Template:Reflist.
- Vertical_service_code subject Category:Calling_features.
- Vertical_service_code subject Category:North_American_Numbering_Plan.
- Vertical_service_code subject Category:Telephone_numbers.
- Vertical_service_code subject Category:Telephone_numbers_in_Canada.
- Vertical_service_code subject Category:Telephone_numbers_in_the_United_States.
- Vertical_service_code type Article.
- Vertical_service_code type Article.
- Vertical_service_code type Feature.
- Vertical_service_code type Identifier.
- Vertical_service_code type Source.
- Vertical_service_code comment "A vertical service code (VSC) is a special code dialed prior to (or instead of) a telephone number that engages some type of special telephone service or feature. Typically preceded with an asterisk, or * (star), key on the touch tone keypad and colloquially referred to as star codes, most are two digits in length; as more services are developed, those that use 2 or 3 as the first digit are sometimes three digits in length.In North American telephony, VSCs were developed by AT&T Corp.".
- Vertical_service_code label "Vertical service code".
- Vertical_service_code sameAs m.025_93.
- Vertical_service_code sameAs Q17112830.
- Vertical_service_code sameAs Q17112830.
- Vertical_service_code wasDerivedFrom Vertical_service_code?oldid=638844254.
- Vertical_service_code isPrimaryTopicOf Vertical_service_code.