放置在市话局的设备，对市话局的线路进行电池交叉和接地测试。
ALIT. Equipment located in a Central office which sequentially tests lines in the office for battery crosses and grounds.
放置在市话局的设备，对市话局的线路进行线路交叉测试和对地测试。
Equipment located in a Central office which sequentially tests lines in the office for battery crosses and grounds.
本文采用盈亏点分析法对常见市话局间中继传输方式进行了经济性比较。
In this paper, the common transmission methods between local exchanges are compared on economics by means of breakeven analysis.
大多数市话局模拟器可以模拟常规的挂机、摘机、拨号、应、通话等动作。
Most central office simulators can simulate normal on-hook, off-hook, dialing, answering, speaking, etc.
本文着重介绍市话局用户呼叫小交换机用户的全自动接续的各种接口电路方案。
This Paper introduces the interface circuits schemes of the PABX that realizes the local office subscribers to call the subscribers of PABX.
自动呼叫分配器，通常位于市话局，由电话公司提供给客户并对定价体系进行征税。
An Automatic Call Distributor, usually located in a central office and supplied to the customer by the telephone company with tariffed pricing structures.
自动呼叫分配器，通常位于市话局，由电话公司提供给客户并对定价体系进行征税。
An Automatic Call Distributor, usually located in a central office and supplied to the customer by the telephone company with tariffed pricing structures.
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