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local exchange 市內電話局。

local government

When stored program controlled ( spc ) technology generalized . some of these . supplementary services were integrated into local exchanges . what allowed users to access services in the quick and transparent way we are already used to . and at the same time , allowed an increase in the operator - company revenues from a wider span of fees 當存儲控制程序技術得到普遍適用之后,其中的一些附加的服務融合到了地方的交互系統中,這就方便用戶能夠獲得我們現在早已習慣的快捷、清晰的服務,同時,也使得電話公司能通過從更廣的區域收取費用以增加其利潤。

Along with the coming of computer age , digitizing , broad banding and intelligentization became the trends of future communication progress . users put more expectations to communication service . access network connecting local exchange with user is an important part of telecom network 隨著通信與計算機整合時代的到來,數字化、寬帶化和智能化已成為未來通信發展的方向,人類社會對電信業務從質量到業務種類都提出越來越高的要求,而接入網作為電信網的重要組成部分,連接本地交換機與用戶,是整個電信網的毛細血管和瓶頸,實現數字化、寬帶化和業務綜合化的關鍵。

V interfaces at the digital local exchange - v5 . 2 interface for the support of access network - part 3 : test suite structure and test purposes tss tp specification for the network layer an side endorsement of the english version en 300 本標準適用于以漢語為交換語言的多語種敘詞不達意表的編制與修訂,不適用于符號化檢索語言如數字公式與化學式詞表自動標引抽詞系統以及不作規范處理的關鍵詞表。

The introduction of the v5 standard interface in exchange realizes the digital link between the local exchange and access network , makes the digital channel connect with the subscribers directly or more closely , and finally achieves the digital access network V5標準接口的引入使得接入網與本地數字交換機直接采用數字相連,使數字通道靠近或直接連接到用戶,實現了接入網的數字化。

Jon walks into the campus security office in his telco costume and explains that he has been called out by the local exchange carrier because a circuit appears to be looped from the telco Jon穿著他的電信制服走入場地安全辦公室,然后說明他是由本地交換運營商( local exchange carrier ( lec ) )派來的,因為看來電路從電話公司形成了回路。

An . v interfaces at the digital local exchange - access network supporting v5 - transmission characteristics and performance design objectives for call handling and bearer channel connection management 數字本地電話交換的v接口.支持v5的接入網絡

Local exchange used by some north american long - distance carriers to let their customers access their calling card and other services 一些北美長途電信公司使用的本地交換。用戶撥打950可以訪問這些電信公司的呼叫卡和一些其他服務。

V interfaces at the digital local exchange - v5 . 1 interface for the support of access network - part 1 : v5 . 1 interface specification 數字局部交換v接口.支持網絡通路的v5 . 1接口.第1部分:接口規范

Rules that a lec ( local exchange carrier ) employs to redirect a call that encounters a busy or no answer 當呼叫遇忙或無應答時, lec (本地電話公司)使用該規則重新發送呼叫。

Centered operation and maintenance system project for the local exchanges in datong telecom bureau , shanxi province 大同市電信局市話局的集中操作維護中心的安裝開通工程。

Centered operation and maintenance system project for the local exchanges in beijing telecom bureau 北京市電話局四區局的集中操作維護中心的安裝開通工程。

2 top speeds may vary significantly depending on distance from local exchange and line quality 2最高的速度可以顯著地變化從本地交換和線質量取決于距離。

Le : local exchange 本地交換網

Local exchange carrier 本地交換電信局

Lec local exchange carrier 本地交換載波

Different local exchanges 不同的本地交換機

Very small local exchange vsle 很小容量市話局

Digital line signalling for manual toll exchange to local exchange 人工長途電話局至市話局局間中繼數字型線路信號

Competitive local exchange carrier 競爭本地交換運營商