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Radium[_4_] Radium[_4_] is offline
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Default EDT [European Deaf Telephone] and EDTN are the TDD [Telecommunications Device for the Deaf] protocols used in Switzerland. Where can I find tones/numbers?
On Aug 29, 5:17 pm, Rich Grise wrote:

Just learn how to build an oscillator, make a few of them tuned
to your favorite frequencies, and play watever you want to.

I first have to know what my favorite frequencies are?

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