Siemens Gigaset DX800A all in one Setup & User Manual page 36

High
Voice/earpiece volume is too low. Activate this option to increase the volume by
6 dB.
Selected codecs / Available codecs
Prerequisite: The Own Codec preference option is activated for the Voice Qual-
ity in the Settings for Bandwidth area.
In the Selected codecs and Available codecs lists, you can define your own
codec preference tailored to your DSL connection.
Select the voice codecs your phone is to use, and specify the order in which the
codecs are to be suggested when a VoIP connection is established via this VoIP
connection.
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Apply the voice codecs that your phone is to suggest for outgoing calls into
the Selected codecs list.
To do this, in the Available codecs list select the voice codec that you want to
apply (you can mark several entries using the Shift key or the Ctrl key). Select
<Add.
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Move the voice codecs that you do not want the phone to use into the
Available codecs list.
Select the voice codecs in the Selected codecs list (see above) and click the
Remove> button.
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Sort the voice codecs in the Selected codecs list into the order in which they
should be suggested to the receiving device when a connection is estab-
lished. To do this, use the Up and Down buttons.
When establishing a VoIP connection, the phone suggests the first voice codec
in the Selected codecs list to the receiving device to begin with. If the receiving
device does not accept the codec (e.g., because it is not supported), the second
voice codec on the list is suggested etc.
If the receiving device does not accept any of the voice codecs in the Selected
codecs list, the connection is not established. An appropriate message will be
displayed on the handset.
If the phone always starts by trying to establish a broadband connection, put
the G.722 codec at the top of the Selected codecs list.
Please note
u
Only deactivate codecs (put them in the Available codecs list) if there is a
particular reason. The more codecs that are deactivated, the greater the
risk that calls cannot be established due to unsuccessful codec negotia-
tions. In particular you can only establish broadband connections if you
permit the G.722 codec.
u
With incoming calls, all supported voice codecs are always permitted.
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