out-of-band


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out-of-band

(communications)
The exchange of call control information on a dedicated channel, separate from that used by the telephone call or data transmission.

out-of-band

(2)
Sometimes used to describe what communications people call "shift characters", such as the ESC that leads control sequences for many terminals, or the level shift indicators in the old 5-bit Baudot codes.

out-of-band

(3)
In personal communication, using methods other than electronic mail, such as telephone or snail-mail.

out-of-band

(software)
Values returned by a function that are not in its "natural" range of return values, but rather signal some kind of exception. Many C functions that normally return a non-negative integer return -1 to indicate failure.

This use confuses "out-of-band" with "out-of-range". It is actually a clear example of in-band signalling since it uses the same "channel" for control and data.

Compare hidden flag, green bytes, fence.

out-of-band

(1) Separate from the primary frequency or system. See signaling in/out-of-band and out-of-band data.

(2) Not at the regular time. See out-of-band patch.
References in periodicals archive ?
Thats an immense customer base that can now take advantage of adding cellular as a method for their out-of-band access.
We see continued out-of-band innovation as especially imperative with the Internet of Things driving toward 26 billion connected units by the end of the decade.
The patented ProtectID Out-of-Band Mobile Authentication Technology can be used to secure access to social networking websites, protect online banking access and remote access for employees, and to protect critical infrastructure and citizens against cyber attacks.
We investigate asymptotic NGD limits as a function of the maximum out-of-band gain for gain-compensated causal linear media.
By combining out-of-band authentication with real-time fraud alerts, PhoneFactor offers the strongest level of security for protecting employee and customer access - and is more cost efficient and easier to implement than other two-factor authentication methods.
Opengear's mission is to be the leader in cost-effective, out-of-band remote control solutions by leveraging open source to make IT infrastructure management affordable at the enterprise data center and beyond.
More companies are using out-of-band networking to minimize the cost of downtime, reduce risk and increase service levels," said Mary Jane Gruninger, general manager of the Out-of-Band Networking division.
Our combination of RDP and KVM over IP functionality provides the perfect marriage of features to access and maintain a variety of servers using the production network or through an out-of-band connection.
Thus, the out-of-band approach is theoretically more suitable for higher performance applications.
In fact, how do you apply any network security system--including intrusion detection--to out-of-band management when you can't be sure that those networked systems will be accessible at the moment they're needed most?
The cost-effective NanoSSH suite enabled us to achieve within our limited code and memory space all the SSH functionality and data stream encryption we required for this new, lower-cost family of out-of-band management products targeting managed service providers," said Tadhg Kelly, CEO of Communication Devices, Inc.
Financial institutions using mobile banking channels have typically relied on simple passwords or out-of-band transaction verification based on one time passwords (OTP) tokens sent via SMS to customers mobile devices.