In a frequency modulation system, the ratio of the maximum frequency deviation of the carrier to the maximum modulating frequency of the system under specified conditions.

In cryptography, a public key certificate or an attribute certificate, issued by a device manufacturer, tying the identity of the device to its attributes. [After X9.45]

Software that interfaces a computer with a specific peripheral device, e. g. a videodisk player or a printer.

Device specific information which identifies the capabilities of a device. This can include information on embedded applications and firmware as well as device configuration and ideally contains information on upgrades, updates and version numbers to applications or physical device accessory attachments. The device profile is used in the context of service convergence to define the parameters which affect QoE, transfer/concurrence… (Read More →)

A location technology that uses a mix of location methods available to the device including crowd-sourced Wi-Fi, Assisted Global Navigation Satellite System (A-GNSS), and handset-based sensors. It also includes an associated uncertainty estimate reflective of the quality of the returned location.

Dynamic Feedback Arrangement Scrambling Technique

Abbreviation for double-frequency shift keying.

Default Free Zone

Dynamic Host Configuration Protocol

Department of Homeland Security