𝙺𝚎𝚎𝚜 𝙲𝚘𝚘𝚔 Retweeted Andy Fields
This is one of my favorites. The "Dual Tone" in DTMF is visible, the frequency windowing is visible as the protocol feels out how wide it can transmit, etc, etc.https://twitter.com/PainPoint/status/968523682250342400 …
𝙺𝚎𝚎𝚜 𝙲𝚘𝚘𝚔 added,
9:28 AM - 28 Feb 2018
0 replies
5 retweets
4 likes
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