最后，设计了电台基本功能的通信流程，并进行了测试，结果表明设计的数字信令方案达到了预期效果。
Finally, the communication procedure is designed, implemented and measured. The test results show that the signaling design is reasonable, effective and feasible.
本发明采用双向CAT V技术结合多信道共用交换技术，计算机处理，联网及数字信令技术组成有线公用通信交换网。
It adopts two-direction CATV tech and combines with multiplex public exchanging tech, computer processing and on-line, and digital signal and order tech, composing public communication network.
双音多频是一种在话音信道用音调来表示数字的方法，它可以用来在模拟话音信道传输信令，因此在通信中有广泛的应用。
Provide is a voice channel and tone to represent Numbers method, which can be used to transmit analog voice, so in communication has been widely used.
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