PBX
abbr. 专用分组交换机（private branch exchange）
例句
With a conventional PBX, separate networks are necessary for voice and data communications.
用常规p BX时，话音和数据通信必须有两个分开的网络。
Find a cloud based VOIP PBX out there that is commercially supported that provides dial tone.
找到一个基于云的网络电话路由器，该设备还提供拨号音。
One of the main advantages of an IP PBX is the fact that it employs converged data and voice networks.
IP PB X主要的优势之一就是它使用合并的数据与话音网络。
