More About Internet Telephony; Telephony Scenarios - Fritz! Fon WLAN 7390 Installation, Configuration And Operation

More about Internet Telephony

4 More about Internet Telephony
Voice over IP (VoIP)
Data Transfer
4.1

Telephony Scenarios

Internet telephony has already been in use for years, but
today it allows even private customers the convenience fa-
miliar from conventional telephony, usually at significant-
ly lower prices.
Internet telephony has also made it considerably more
convenient to use applications like conference calls and
answering machines in networks. Further advantages in-
clude global availability at a single telephone number,
and the development of new standards for security and
voice quality.
All kinds of data transmission in the Internet use the Inter-
net Protocol (IP). IP is packet-oriented. This means that
the data are broken down into data packets for transmis-
sion and IP takes care of the transport of the individual da-
ta packets through the Internet. Language is also trans-
mitted in the Internet in this manner.
In opposition to this, fixed-line telephony transmits data
in a line-oriented manner. In this case data are transmit-
ted in a coherent data stream.
If you have configured both a fixed-line number and an In-
ternet telephone number in FRITZ!Box, you can make calls
in all directions:
•
from the fixed-line network into the fixed-line net-
work
•
from the Internet into the fixed-line network
•
from the Internet into the Internet
and receive calls from all directions as well.
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