On Mon, Aug 29, 2011 at 4:32 PM, Cary Fitch wrote:
> —–Original Message—–
> From: email@example.com
> [mailto:firstname.lastname@example.org] On Behalf Of C F
> Sent: Monday, August 29, 2011 3:18 PM
> To: email@example.com; Asterisk Users Mailing List – Non-Commercial
> Subject: Re: [asterisk-users] Dragging the dialup customers along, possible?
> From what you are asking it appears that you are trying to run similar
> to a fax (modulation and demodulation) over VoIP.
> Try again, the fact that you succeeded twice was pure luck, and as far
> as I understand that didn’t even work out.
> Switch back to TDM. Your dial up modems want that magic thing called
> timing and no jitter that only TDM will give you.
> This is more of a whimsical statement than a scientific one, but I would
> think in today’s world, there would be a real small box that would take in
> IP and put out TDM with good timing with a moderate buffering window.
> Obviously, the IP has to actually get to the box in a timely fashion, like
> “today” , but a TDM circuit has to be “up” also.
> A box that would take in IP data…, look for valid “ascii”, and otherwise
> put out TDM modem tones with no data content for “1 second” and then pick up
> the data as it catches up.
So you want to develop the equivalent of T.38 for dial up?
> Better a laggy modem connection than no data at all.
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