Telecom Awesome
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标签：资源精选
Radio
PSTN
DTMF
- A HTML 5 AudioContex DTMF Tone Generation Tool
- Recreating phone sounds with Web Audio
- wikipedia Precise tone planWikipediaPrecise tone plan
- dial tone - 350, 440 Hz at −13 dBm
- ringing tone - 440, 480 Hz at −19 dBm, 2s ON and 4s OFF
- low tone - busy tone - 480, 620 Hz at −24 dBm, half second ON and one half second OFF
- reorder tone - 0.25 second ON and 0.25 second OFF
- high tone - 480 Hz at –17 dBm
- www.npmjs.com/search?q=dtmf
GSM
关联信息
反向链接、本文链接的其他页面和外部资料。
参考资料
Wikipedia1 条
- Precise tone planWikipedia:Precise tone plan
其他外链6 条
- librecellular.orglibrecellular.org/
- mamclain.com?page=RND_SOFTWARE_DTMF_WEB_APPmamclain.com/?page=RND_SOFTWARE_DTMF_WEB_APP
- outputchannel.com/post/recreating-phone-sounds-web-audiooutputchannel.com/post/recreating-phone-sounds-web-audio
- shufflingbytes.com/posts/hacking-goip-gsm-gatewayshufflingbytes.com/posts/hacking-goip-gsm-gateway
- www.dc-unlocker.comwww.dc-unlocker.com/
- www.npmjs.com/search?q=dtmfwww.npmjs.com/search?q=dtmf