User's Manual

Table Of Contents
172
Glossary
Gigaset A580 IP / US English / A31008-xxxx-xxxx-x-xxxx / glossary.fm / 24.04.2009
Version 8, 03.09.2008
Glossary
A
ADSL Asymmetric Digital Subscriber Line
Special form of
DSL.
ALG Application Layer Gateway
NAT control mechanism of a router.
Many routers with integrated NAT use ALG. ALG lets the data packets in a VoIP
connection pass and adds the public IP address of the secure private network.
The router's ALG should be deactivated if the VoIP provider offers a STUN server
or an outbound proxy.
£
Firewall, NAT, Outbound proxy, STUN
Authentication
Restriction of access to a network/service by use of an ID and password to
log in.
Automatic ringback
£
Ringback when the number is busy.
B
Block dialing
Enter the complete phone number, and correct it if necessary. Then pick up the
handset or press the Handsfree key to dial the phone number.
Broadband Internet access
£
DSL.
Buddy Subscriber with whom you exchange brief messages on the Internet in real
time (chatting).
£
Instant messaging.
C
Call waiting = CW
VoIP provider feature. A beep during a call indicates that another caller is wait-
ing. You can accept or reject the second call. You can activate/deactivate the
feature.