In-band, out-of-band: Difference between revisions
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m (Helpful moved page Out-of-band to In-band, out-of-band) |
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In the contrast between in-band and out-of-band, | In the contrast between in-band and out-of-band, | ||
: In-band tends to mean " | : In-band tends to mean "communication included over the same medium" | ||
:: e.g. acoustic telephone systems using specific tones / tone combinations (over the same line) to signify special conditions, alongside voice | :: e.g. acoustic telephone systems using specific tones / tone combinations (over the same line) to signify special conditions, alongside voice | ||
: Out-of-band is activity outside the main channel. | : Out-of-band is activity outside the main channel. | ||
:: often meaning another channel of communication | :: often meaning another channel of communication | ||
:: these are often more complex and more costly, but often also more reliable | |||
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In other engineering, it is often a little more metaphorical, meaning "outside of the primary communication" | In other engineering, it is often a little more metaphorical, meaning "outside of the primary communication" | ||
A website | |||
A website doing [[MFA]] via something like SMS is out of band. | |||