本地交换(local exchange)连接到在一个本地访问和传输区域(LATA)的本地交换，或者连接到长距离运营商如AT&T，MCI，和Sprint.
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它主要增加了本地交换（LocalSwitch）、全接入（FlowAccessibility）、硅盘、紧急呼叫等新功能；它的最大容量为8000线模拟用户或者等同8 000线的模拟用户和数字用户的...
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本地交换机 local exchange ; local switch ; LS
本地交换局 [通信] Local Exchange ; end exchange ; end office
本地交换运营商 ILEC ; incumbent local exchange carrier ; local exchange carrier ; LEC
本地交换信道 LEC LocalExchangeChannel
本地交换电信局 Local Exchange Carrier
本地交换机运营商 LEC LocalExchangeCarrier ; local exchange carrier
本地交换载波 local exchange carrier
竞争的本地交换载波 competitive local exchange carrier
本地交换电信公司 local exchange carrier
有许多不同种类的PSTN信令，包括在本地交换之间信号。
There are many different kinds of PSTN signaling, including signaling between local exchanges.
平等接入要求所有长途电信运营商的业务能平等地按续到本地交换运营商的网络。
Fair access requires that all long-distant service providers be guaranteed of fair ser - vice access to the Local Exchange networks.
Jon穿着他的电信制服走入场地安全办公室，然后说明他是由本地交换运营商(Local Exchange Carrier (lec))派来的，因为看来电路从电话公司形成了回路。
Jon walks into the campus security office in his Telco costume and explains that he has been called out by the Local Exchange Carrier (LEC) because a circuit appears to be looped from the Telco.
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