[Asterisk-Users] ToIP (TDD over IP)

[Joel Maslak]

I didn't know if it would work or not, but I figured I'd try slow-speed
half-duplex TDD over GSM & Vonage.

I called a AGI script I have that speaks to TTYs, by calling from Vonage
to one of my Voicepulse lines.  I don't control the Vonage codec, so I
have no idea what it uses, but I am using GSM for the Voicepulse line.
Everything worked fine - echo canceling didn't cause any trouble (I don't
know if it would have if I did full duplex, though), I didn't lose any
characters, etc.  So for people who have a need for this kind of
technology, I can tell you that it will work.

I'm also curious if anyone else is doing this or if anyone else is using
the Asterisk TDD support.

-- 
Joel