论文部分内容阅读
本文对于数字程控电话交换机呼出限制功能的部定技术规范提出补充意见,并综合分析国内电话呼出限制方面产品及市场情况.
In this paper, the digital program-controlled telephone switch outbound restrictions on the technical features of the proposed additional comments, and comprehensive analysis of the domestic telephone outgoing restrictions on products and market conditions.