The number of lines and traffic of the Public Switched Telephone network (PSTN) network have also been decreasing.
公共电话交换网(PSTN)的线路和流量也在减少。
It is most extensively used Lines of Communication to Public Switched Telephone Network (PSTN), hence the video surveillance system based on PSTN possesses widespread application prospects.
公共电话交换网(PSTN)是最广泛使用的通信线路，因此在PSTN线路上传输视频具有广阔的应用前景。
A new ECG teletransmission system based on embedded modem and public switched telephone network (PSTN) is presented, which consists of family unit, PSTN and center workstation.
本文介绍了一种通过嵌入式调制解调器与公共电话网实现心电数据远程传输的系统，系统由家庭单元、公共电话网和中心工作站组成。
The intelligent combination of advanced technology and the public switched telephone network PSTN offers greater possibilities of optimization and promotion of home.
先进的科技和公用电话交换网pstn的结合为智能化家居的优化和推广提供了更大的可能性。
The limited transmission rate available on the Public switched telephone network (PSTN) and on wireless networks presents a significant challenge to digital video communications.
这些应用对传输速率有限的公共交换电话网(PSTN网)和无线网络提出了重大挑战。
So far, facsimile is mostly carried on PSTN (Public Switched Telephone Network), which brings numerous expenses together with the service.
目前传真业务主要在公共电话网上承载，这种传真业务的使用给企业带来了巨额的支出。
So far, facsimile is mostly carried on PSTN (Public Switched Telephone Network), which brings numerous expenses together with the service.
目前传真业务主要在公共电话网上承载，这种传真业务的使用给企业带来了巨额的支出。
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