Auerswald COMpact 3000 analog Installation, Operation And Configuration Instructions page 563

Glossary
Terminology and Functions
E
DNS
DNS (Domain Name Service) is needed to translate Internet addresses from a form readable
by the user (for example, www.auerswald.de) and to the corresponding IP addresses that the
PC can use to request the page on the Internet. This service is provided by DNS servers at the
various Internet service providers or by upper domain servers.
Do-not-disturb
The do-not-disturb function offers the option of blocking internal and external calls as well as
blocking group calls on a specific telephone. A caller hears only a busy signal. An internal
subscriber can reach a telephone with call protection in an emergency using a priority call.
The do-not-disturb function has no influence on outbound calls, callbacks, wake-up calls or
InterCom calls.
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).
E
E-mail
An e-mail (electronic mail) is a message that is transmitted over a computer network.
Echo Cancellation
Local echos and Hall effects are compensated using echo cancellation. For example, an echo
is generated on the receiver of a telephone; the voice of the caller emanates from the loud
speakers and reaches the microphone where it is then transmitted back.
563
COMpact 3000 analog/ISDN/VoIP - Firmware Version 4.0 - Version of the Manual 03 02/11