Re: modulated data over GSM voice (was Re: Data over normal GSM call)

2008-04-15 Thread Andy Green
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Somebody in the thread at some point said: | While stating it being unlikely, I have no dout that it can be done, | given enough effort. But it requires a lot of work by somebody with Alright, that's all I was saying too. | lots of knowledge and e

Re: modulated data over GSM voice (was Re: Data over normal GSM call)

2008-04-14 Thread Harald Welte
On Mon, Apr 14, 2008 at 10:15:06PM +0200, Adrian-Ken Rueegsegger wrote: > > Harald Welte wrote: >> Just to give you a "summary judgement": >> >> Running any kind of voice-encoded data over a regular voice channel of a >> GSM phone is _extremely_ unlikely to work. >> >> There are a number of differe

Re: modulated data over GSM voice (was Re: Data over normal GSM call)

2008-04-14 Thread Ian Stirling
Harald Welte wrote: Just to give you a "summary judgement": Running any kind of voice-encoded data over a regular voice channel of a GSM phone is _extremely_ unlikely to work. There are a number of different codecs in use. Which codec is determined by the network. There is echo cancellation a

Re: modulated data over GSM voice (was Re: Data over normal GSM call)

2008-04-14 Thread Adrian-Ken Rueegsegger
Harald Welte wrote: Just to give you a "summary judgement": Running any kind of voice-encoded data over a regular voice channel of a GSM phone is _extremely_ unlikely to work. There are a number of different codecs in use. Which codec is determined by the network. There is echo cancellation

modulated data over GSM voice (was Re: Data over normal GSM call)

2008-04-14 Thread Harald Welte
Just to give you a "summary judgement": Running any kind of voice-encoded data over a regular voice channel of a GSM phone is _extremely_ unlikely to work. There are a number of different codecs in use. Which codec is determined by the network. There is echo cancellation at potentially multiple