Gigaset DE410 IP Pro User Manual page 94

Configuring phone settings via the Web configurator
You can set the following parameters for the voice quality:
Packed time for RTP packages
¤
Select the interval for sending RTP packets (20 or 30 ms).
RTP (Real-time Transport Protocol) is a protocol for the continuous transmission of audio-
visual data (streams) via IP-based networks.
Voice quality
¤
Select the voice quality that matches the bandwidth of your DSL connection.
– Optimised for high bandwidth
– Optimised for low bandwidth
– Select Own Codec preference if you want to determine the codecs yourself.
Both parties involved in a phone connection (caller/sender and recipient) must use the same
voice codec. The voice codec is negotiated between the sender and the recipient when estab-
lishing a connection. You can influence the voice quality by selecting (bearing in mind the
bandwidth of your Internet connection) the voice codecs your phone is to use, and specifying
the order in which the codecs are to be suggested when a VoIP connection is established.
¤
Select the required codecs and define the sequence in which they should be used.
The following voice codecs are supported by your phone:
G.722 The broadband voice codec G.722 works at the same bit rate as G.711 (64 kbit/s
per voice connection) but at a higher sampling rate (16 kHz) and therefore pro-
vides excellent sound quality.
G.711 a law/G.711 μ law
Excellent voice quality (comparable with ISDN). The necessary bandwidth is 64
kbit/s per voice connection.
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