9 Feb
2015
9 Feb
'15
9:28 a.m.
On Feb 9, 2015, at 9:02 AM, Sean Caron <scaron at umich.edu> wrote:
It's all about latency and jitter. If you can keep the latency and jitter
down... and consistent... modems will actually work pretty well over VoIP
and you can sometimes pull off some fairly high data rates... If jitter on
the link is very bad, good luck, even at 300 baud.
I?ve actually had a 300 baud modem connect to an audio track on a CD. A long time ago when
I was working at Napa Valley College, a student brought in a CD (I have no idea what band
or album) that had an extra track which was a 300 baud modem recorded on it and he wanted
to know what it was. To connect it to the modem I just played the track loudly and held up
the handset on a phone near the speaker. It worked because at 300 baud there?s no two-way
negotiation between the modems at all.
One of these days I?ll get around to trying the same thing but uploading it as a YouTube
video to see if someone else can make it connect to their modem.
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