Abbreviated as UAC, in VoIP, a client application in an SIP system that initiates the SIP request that is sent to the UAS. The combination of the UAC and the UAS is called the SIP user agent. The SIP user agent allows peer-to-peer calls to be made using a client-server protocol.
- user agent
In Google Analytics, user agent is a term used to mean any program used for accessing a Web site. This includes browsers, robots, spiders and any other program that was used to retrieve information from the site.
An individual who uses a computer. This includes expert programmers as well as novices. An end user is any individual who runs an application program.
Usability is a Web site design phrase that describes how well visitors can use a Web site. Good usability requires that the site be easy to navigate, have a decent layout, be consistent across all pages, and also be informative and useful to the visitor.
- upward compatible
Refers to software that runs not only on the computer for which it was designed, but also on newer and more powerful models. For example, a program designed to run on an Intel 386 microprocessor, which also runs on a Pentium, is upward compatible. Upward compatibility is important because it means you can move to […]
(adj.) A transmission from an end user to a server. An upstream transmission can be in the form of a signal being transmitted from a workstation to a server across a network, such as a LAN, or a signal being sent from a customer to a cable service provider. A transmission from a server to […]