EDT [European Deaf Telephone] and EDTN are the TDD [Telecommunications Device for the Deaf] protocol

[Radium]

Hi:

I've posted this before but never got a rational scientific response.
I apologize profusely for the repetition and any annoyance it causes
but I am really interested in this.

EDT [European Deaf Telephone] and EDTN are the TDD [Telecommunications
Device for the Deaf] protocols used in Switzerland. Where can I find
technical information about the EDT/EDTN? Also, I would like to hear
some tones resulting from the remote EDTs/EDTNs located in
Switzerland. I live in USA, so if I dial an EDT/EDTN number to
Switzerland, I will hear both the EDT/EDTN tones as well as the tones
resulting from negotiations among international telephone exchanges.
Those textphone and international exchange tones give me an eerie
feeling which I enjoy. I get a feeling of pleasant fear. Its give me a
psychedelic sensation. I like it. The tones are scary yet fun -- much
like virtual reality, a roller-coaster, or a trip to outer space!

If I could find accurate recording of those tones [tones from remote
Swiss EDTs/EDTNs and international exchange negotiations] on a website
in Wave format and at least 44.1 kHz sample rate and 16-bit, then I
would just download those tones and listen. Unfortunately, no internet
site has recordings of those tones.

In addition, can EDT/EDTN signals be used as a form of dial-up
internet access? Obviously it won't be any faster than other dial-ups
-- most likely a max of 56 kbps. The sounds would be different from
currently-used dial-up modems, though. This is because EDT/EDTN uses
different types of signaling than most 56K dial-up modems.

Also, what does EDTN stand for? From what I was told in
http://groups.google.com/group/rec....AEARYt3Jalo6NNUi8Jt6wYH6Ba_Ois7NjCgNKwU1jjERM
, it stands for "European Deaf Telephone Network." This information
could very well be wrong, given that the poster seems to have a
personal vendetta against me.

I googled "European Deaf Telephone Network" in
http://www.google.com/search?hl=en&q="European+Deaf+Telephone+Network"&btnG=Google+Search
but only came up with two searches containing my previous posts. This
is extremely frustrating!!!! I can't believe I am the only one who is
interested in EDT/EDTN!


Thanks in advance for your assistance, cooperation, and understanding,

Radium

 

[John Fields]

I googled "European Deaf Telephone Network" in
http://www.google.com/search?hl=en&q="European+Deaf+Telephone+Network"&btnG=Google+Search
but only came up with two searches containing my previous posts. This
is extremely frustrating!!!! I can't believe I am the only one who is
interested in EDT/EDTN!

 

[Radium]

Could be that everyone is losing interest in your trolls, troll.

I don't troll. I am just interested in EDTN because its one of the
types of telephone audio devices no one talks about and it is used in
Switzerland by those with sensorineural deafness. I associate
Switzerland with frightening-yet-enjoyable high-technology magnetic
telecommunications. I don't know why, I just do. Sensorineural-
deafness is accompanied by a false-perception of a high-pitched sine-
wave tone resembling the "whine" of a CRT. Sensorineural-deafness is
caused by damage to the acoustic nerves responsible for translating
mechanical vibrations in the cochlear hair to neural impulses that can
be detected by the brain. Since sensorineural deafness involves
acoustic-nerve-damage and the damage nerves are hyper-excitable, they
send crazy signals to the auditory cortex interpreted as sounding
similar to a CRT monitor. This is false auditory perception is called
tinnitus.

The EDT/EDTN uses audio signals to communicate between one EDT/EDTN
device and another EDT/EDTN device. Just like one PC can communicate
with another PC half-way around the world using audio-frequency
signals via dial-up modems.

I've never actually listened to EDT/EDTN but I think I'll enjoy it.
I've listened to American TDD tones by dialing local TDD numbers

Dial 1-800-543-1586 and you'll hear the American TDD tones I am
talking about. This is an example of a TDD number used in the United
States. I want to hear the Swiss-equivalent of TDD.

 

[Steve Underwood]

Hi:

I've posted this before but never got a rational scientific response.
I apologize profusely for the repetition and any annoyance it causes
but I am really interested in this.

EDT [European Deaf Telephone] and EDTN are the TDD [Telecommunications
Device for the Deaf] protocols used in Switzerland. Where can I find
technical information about the EDT/EDTN?

As you could find in one minute from searching Google, EDT is one of the
protocols defined in V.18. It is used in several European countries, not
just in Switzerland. V.18 bundles a variety of ways for deaf people to
communicate. Its a rather messy spec.

Regards,
Steve

 

[Radium]

As you could find in one minute from searching Google, EDT is one of the
protocols defined in V.18. It is used in several European countries, not
just in Switzerland. V.18 bundles a variety of ways for deaf people to
communicate. Its a rather messy spec.

Okay, thanks for your assistance regarding EDT. What about EDTN? What
is EDTN? Does EDTN use V.18?

 

[John Fields]

I don't troll.

---
Sure you do.

Your trick is to generate confusion and then you get your jollies
watching some folks floundering around trying to make sense of your
nonsense.

 

[Rich Grise]

I've posted this before but never got a rational scientific response.
I apologize profusely for the repetition and any annoyance it causes
but I am really interested in this.

EDT [European Deaf Telephone] and EDTN are the TDD [Telecommunications
Device for the Deaf] protocols used in Switzerland. Where can I find
technical information about the EDT/EDTN? Also, I would like to hear
some tones resulting from the remote EDTs/EDTNs located in

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

Good Luck!
Rich

 

[Radium]

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?