Detect accurately when the called party answers the call 正确检测摘挂机 DTMF detection 检测DTMF按键 Suitable for 3.3 volts and 5.0 volts 32 bit PCI slots 适用全部类型的PCI插槽 ..
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By adopting the embodiment of the invention can shield the differences of access network elements or terminals and carry out an in-band DTMF detection and report to the AS.
采用本发明实施例，可以屏蔽接入网元或终端的差异，进行带内dtmf检测并上报到AS。
This paper analyzes the ring detection, DTMF codec and power line carrier and the realization of the principle of the program.
本文分析了振铃检测、DTMF编解码和电力线载波的原理及实现方案。
This paper presents a detection and control system in which the DTMF method is used to realize data communication.
本文介绍一种DTMF（双音多频）通信方式的远程测控系统。
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