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COMpact 5200/5200R/5500R - Firmware V7.2 - Advanced Information V04 07/2018
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Glossary
Terminology
Driver
Program or software module that controls the interaction between an
operating system or program and the interfaces to connected devices
(keyboard, printer, monitor, etc.) or virtual devices.
DSL
Digital Subscriber Line - Internet access technology using a digital trans-
mission standard that provides wide bandwidths for the transmission of data
via telecommunication networks.
DTMF
Dual Tone Multi Frequency dialling - dialling method that transmits the
dialled number to the exchange as two superimposed sinusoidal signals.
DynDNS
DynDNS services make it possible to access an Internet connection despite
a dynamic IP address. To do this, the service provider assigns the changing
IP address of an Internet connection to a permanent domain name
(e.g., YourName.DynDNS.org).