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How Does Internet Telephony Work?
5 Configuring FRITZ!Box Fon WLAN for Telephone Connections
47
In opposition to this, fixed-line telephony transmits data in a
line-oriented manner. In this case data are transmitted in a
coherent data stream.
For packet-oriented transmission in the Internet, the loss of
packets cannot be ruled out completely. Under unfavorable
conditions this can lead to speech quality in Internet tele-
phony that is inferior to that in fixed-line telephony.
Telephony Scenarios
If you have configured both a fixed-line number and an Inter-
net number in FRITZ!Box Fon WLAN, you can make calls in all
directions:
z
from the fixed-line network into the fixed-line network
z
from the Internet into the fixed-line network
z
from the Internet into the Internet
and receive calls from all directions as well.
Bandwidth Management with FRITZ!Box Fon WLAN
The FRITZ!Box Fon WLAN is equipped with integrated band-
width management. This function ensures that the speech
quality during telephone calls over the Internet is not re-
duced by surfing activity. The FRITZ!Box Fon WLAN adjusts all
uploads and downloads to the currently available band-
width. Because FRITZ!Box Fon WLAN also places a higher pri-
ority on Internet telephony connections over Internet data
connections, unwelcome interference is largely avoided. Just
as for any other call, once Internet telephony transmission
capacity has been reached, remote partners receive a busy
sign.