private branch exchange
美
英 
- un.专用电话小交换机;专用交换分局
- 网络专用小交换机;专用分组交换机;用户电话交换机
英汉解释
例句
If not, the call went to the company's in-house telephone switching system, or PBX (private branch exchange).
如果没有,电话就转到公司内的电话交换系统(即PBX,用户电话交换机)。
PBX (Private Branch eXchange): A telephone switch located in a business or home.
(程控交换机):家用或商用电话交换机。
The call is transferred to the Private Branch eXchange (PBX) and then to the Unified Messaging server .
呼叫将转移到专用交换机(PBX),然后转移到统一消息服务器。
A Contrastive Analysis of Central Exchange and Private Branch Exchange
虚拟交换机与传统用户小交换机之对比分析
EPBX Electronic Private Branch Exchange
电子私用分支交换机,专用电子小交换机