telex switching system meaning in English

用户电报交换系统

Zhang ming used to work for research institute of data communications of mpt as design engineer for spc telex switch system research and development , zhang ming has a lot of working experience on product development of computer and communication system product
张明曾工作于前邮电部数据通信研究所，从事了多年的程控电报交换机的研究和开发工作，具有丰富的计算机和通信系统产品的开发经验。