Audio Settings - Gigaset Maxwell 10 Administration Manual

Audio settings

The voice quality of your VoIP calls is determined by the codec used for the transmission. To increase
the quality, more data must be transmitted. Depending on the bandwidth of your DSL connection,
this can then lead to problems with the volume of data – especially if two VoIP calls are made simul-
taneously – so that the transmission no longer takes place smoothly. The following settings allow you
to adjust your Gigaset to your individual DSL connection.
Settings Telephony
You can set the following parameters for the voice quality for each connection:
Time interval for RTP packets
¤
Select the interval for sending RTP packets (20 or 30 ms).
RTP (RTP = Real-Time Transport Protocol) is a protocol for the continuous transmission of audio-
visual data (streams) via IP-based networks.
Voice quality
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 establishing a con-
nection. 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 provides
excellent sound quality.
G.711 a law/G.711 μ law
Excellent voice quality (comparable with ISDN). The required bandwidth is 64 kbit/s
per voice connection.
Silence suppression
Silence suppression means that no data packets are sent during a pause in speaking. This means a
lower data volume but call participants may interpret it as an interruption to the connection.
¤
Select No if you do not want silence suppression. Default setting: Yes
Saving settings
¤
Click on Save to save your settings on the screen.
Audio
Telephony
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