本文提出基于程控交换机的呼叫中心网络拓扑，最大限度地减少了呼叫中心设备容量，降低了设备成本。
The topological network of the call center based on the PBX decreases equipment capacity in the most limitation by far and brings down the cost of equipment.
图1所示的存储控制模块MCB在数字程控交换机等通信设备和自动控制设备中得到大量应用。
The memory control block (MCB) shown in Fig. 1 is widely used in digital program-controlled switching systems, telecommunication equipments and other automatic control equipments.
建立程控交换电话网络实现电话通信需要大量的设备费、线路费、维护费和工程费等费用，并且需要一定的施工工期。
Instructing the switching network to realize the telephone communication needs much of equipment charges, lines charges, protection charges, project charges and time.
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