[Noisebridge-discuss] Audio data transfer protocols that work over VOIP

[Sai Emrys]

For a project I'm working on, I'd like to encode some fixed data in an
audio stream that is routed over both VOIP and POTS.

What protocols can handle the normal degredation that happens in VOIP
& other noisy channels?

I don't care if it's low bandwidth, but it must go over lossy VOIP
without requiring any special hardware on either side, and no special
software that can't be easily acquired and run by anyone. It's OK if
it requires some amount of manual processing and it's OK if it's only
good for one-way transmission.

As an example, AFAICT standard faxes don't work well over VOIP. Morse
code or voiced number station probably would (especially if repeated)
but is a bit too low-bandwidth.

I'm well aware that there are better methods for data transmission;
this isn't really meant to be practical. :-P

Thanks,
Sai