19216811.liveFRITZ!Box
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Selecting the Type of Connection Manually
5.7
Selecting the Type of Connection Manually
If you would like to use a certain kind of connection (Inter-
net or fixed-line) for one call, dial the following keys on the
telephone keypad
before the number
:
Fixed-line Connections
Internet Connections
5.8
How Does Internet Telephony Work?
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 transmission
and IP takes care of the transport of the individual data
packets through the Internet. Language is also transmitted
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 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.
s111r
establishes a fixed-line connection
s12r
establishes an Internet connection. The Inter-
net number used is the Internet number set for
line 1
s12
P
r
establishes an Internet connection for a select-
ed Internet number. For “P”, enter the position
of the Internet number in the “List of Internet
Numbers”.