out-of-band


out-of-band
a) (communications engineering) Out-of-band signaling describes signals that are sent between two parties or two devices that are sent via a path or method different from that of the primary communication between the two parties or devices.

, 2001 In this additional spectrum, in-band signaling was sent down the wires outside the frequencies used for conversation. Actually, the signals were sent across the 3,500- and 3,700-Hz frequencies. Although these worked and were not in the talk path (out of the band) they were limited in the number of tones that could be sent. — Regis J. Bates and Donald W. Gregory, Voice and Data Communications Handbook, 2001, [ page 841]

b) Out-of-band communication or out-of-band identity verification involves a program or s challenge and response to a user via a method other than the primary means of accessing the software. For example, a web application might request verification of a users identity by sending that user an IM, rather than by presenting a web form for username and password entry.

, 2007 One great way of solving the phishing problem is doing out-of-band authentication. — Simon Willison, [ Google Tech Talks: The Implications of OpenID], 2007, at approximately 22:30


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  • out-of-band —    Any frequency outside the band used for voice frequencies …   IT glossary of terms, acronyms and abbreviations

  • Out-of-band control — is a characteristic of network protocols with which data control is regulated. Out of band control passes control data on a separate connection from main data. Protocols such as FTP use out of band control. FTP sends its control information,… …   Wikipedia

  • Out-Of-Band Signaling —   [engl.], Außenbandübertragung …   Universal-Lexikon

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  • Out-of-band agreement — In the exchange of information over a communications channel, an out of band agreement is an agreement or understanding between the communicating parties that is not included in any message sent over the channel but which is relevant for the… …   Wikipedia

  • out-of-band emission — nejuostinis spinduliavimas statusas T sritis radioelektronika atitikmenys: angl. out of band emission vok. Außerbandaussendung, f rus. внеполосное излучение, n pranc. émission hors bande, f …   Radioelektronikos terminų žodynas


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