automatic telephone switchboard

常见例句

The equipment has the function of call the HWB non switchboard anti-explosive telephone from program attemper to realize automatic connecting from switchboard to non switchboard.
室内程控电话转接器具有程控调度电话对HWB型无主机防爆电话扩音通讯系统进行呼叫通话，实现调度电话和无主机防爆电话站自动转接功能。
This article is proposed to develop a new type of digit programme-controlled telephone switching board which is based upon the CAN bus to replace the old automatic telephone switchboard.
本文提出研制新型的基于CAN总线的数字程控交换机替换原有的全电子式自动电话交换机。