翻訳と辞書 Words near each other ・ Vertical plane ・ Vertical Politics Institute ・ Vertical pressure variation ・ Vertical queue ・ Vertical race ・ Vertical Records ・ Vertical replenishment ・ Vertical resistance ・ Vertical restraints ・ Vertical Roll ・ Vertical roller mill ・ Vertical root fracture ・ Vertical search ・ Vertical seat ・ Vertical seismic profile ・ Vertical service code ・ Vertical slice ・ Vertical Smiles ・ Vertical spread ・ Vertical stabilizer ・ Vertical Submarine ・ Vertical tangent ・ Vertical thinking ・ Vertical tillage ・ Vertical translation ・ Vertical TV ・ Vertical vector field ・ Vertical velocity ・ Vertical Velocity (roller coaster) ・ Vertical video Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Vertical service code ： ウィキペディア英語版 Vertical service code 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. == List of vertical service codes == 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Vertical service code」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.