Glossary
D
DECT (Digital Enhanced Cordless Telecommunication)
Standard for wireless telecommunications enabling the exchange of voice and multi- media data between a base station and up to 8 end devices. DECT is now accepted as
astandard in more than 70 countries. In conjunction with the GAP Standard, this allows devices from various vendors to be combined.
Dialler
Originally programs enabling a PC to access telephone connections (e. g. the dialler in the Windows operating systems). The term dialler is now used for programs that set up connections independently and unnoticed to preset special numbers. This normally leads to very high connection charges. Diallers can end up on a PC during an Internet download and then install themselves unnoticed. To protect against diallers, there are programs e. g. the dialler blocker, which a PC can use to control the connections made and to allow only particular connections.
A term for transmitting digital data over the telephone network.
Windows component for remote data transfer that connects a PC via a telephone line (analogue or ISDN) with an external network, e. g. the Internet.
E
Enquiry call
You are making a call. An enquiry allows you to temporarily interrupt the call to connect to a second external or internal party. If you terminate the connection to this user imme- diately, then this was an enquiry call. If you switch to and fro between the first and second user, it is called toggling.
Exchange
Node in a public telephone network via which external connections are set up and redi- rected. A distinction is made between e. g. local exchanges and
External call forwarding
Call forwarding is set to the exchange. The second
F
Firmware
Device operating system. Comparable with the BIOS of a PC, it stores all the basic information necessary for the functioning of a device. To correct errors or update the device software, a new version of the firmware can be loaded into the device's memory (firmware update).
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