This paper reports a multi-feature stored program controlled (SPC) switching system which has voice and data exchange feature and multi-interface.

本文介绍一种具有话音和数据交换功能且具有多种用户接口的多功能交换系统。

youdao

This paper reports a multi-feature stored program controlled (SPC) switching system which has voice and data exchange feature and multi-interface.

本文介绍一种具有话音和数据交换功能且具有多种用户接口的多功能交换系统。

youdao