Siemens Gigaset SX763 WLAN dsl Manual page 103

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If you want to configure additional VoIP accounts, click Add (page 104).
If you have configured VoIP settings in the Basic Setup Wizard the data for your VoIP
account is shown in this line. You can edit this data or add new data for additional
accounts.
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You can generally accept the default settings for Voice Quality:
– Maximum upstream bandwidth: The upstream transmission rate (upstream
bandwidth) varies depending on the provider and DSL tariff and is normally much
lower than the transmission rate for downstream data traffic. If there is upstream
data traffic at the same time over the DSL line, the voice quality may not be opti-
mum. To ensure optimum voice quality, you can use this option to define the
bandwidth, which is to be used as a maximum for your VoIP connection. The
upstream bandwidth is set automatically by default.
To define a fixed upstream bandwidth choose Fixed from the Maximum
upstream bandwidth option menu and enter the desired value.
The default value is 1000 kbit/s and should suffice under normal circumstances.
You can change these values if necessary, but you have to find out first how high
your upstream transmission rate is. Most providers supply tools for administering
your DSL connection, which should tell you this information. Otherwise, you will
find plenty of Web sites on the Internet that provide such tools.
Enter a value for Maximum upstream bandwidth, which is 90 percent of your
available bandwidth.
– Voice activity detection: If this function is activated, no data will be transmitted
during breaks in speech during a telephone call.
– Echo canceller delay: If you hear your own voice as an echo during VoIP tele-
phone calls, you should choose a different value from the list.
– Fixed gain control (input/output): To adjust the volume for call input (hear) or
output (speak), simply enter a different value.
The value range is -24 to +24.
The higher the value, the higher the volume.
-24 qiet
0 normal
24 loud
The real value range which can be used depends on your device. If you enter a
wrong value, a message with the valid value range will be displayed.
Configuring Advanced Settings
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