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Glossary
Glossary
A
ADSL
Asymmetric Digital Subscriber Line
Special form of
.
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.
See also:
.
Authentication
Restriction of access to a network/service by use of an ID and password to
log in.
Automatic redial
Several attempts to call are made automatically when the line is busy.
The number is adjustable.
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
See
Buddy
Subscriber with whom you exchange brief messages on the Internet in real
.
C
Call forwarding
= CF. Automatic forwarding (CF) of a call to a different telephone number.
There are three kinds of call forwarding:
– CFU, Call Forwarding Unconditional
– CFB, Call Forwarding Busy
– CFNR, Call Forwarding No Reply
Call waiting
= CW. VoIP provider feature. A beep during a call indicates that another caller
is waiting. You can accept or reject the second call. You can activate/deacti-
vate the feature.