Siemens Gigaset C470 IP User Manual page 145

Web configurator – configuring the telephone via a PC
Optimising voice quality for VoIP connections
Area: Settings for Connections
In this area you can make specific settings for each of your VoIP phone numbers.
You can make the following settings for each VoIP phone number configured on your
phone:
Volume for VoIP Calls
Depending on the VoIP provider, it is possible that the received voice/earpiece volume is
too low or too high, so that adjusting the volume via the handset is not adequate.
Specify whether the received volume range is too high or too low. The following options
are available:
Low
Voice/earpiece volume is too high. Activate this option to reduce the volume by 6 dB.
Normal
The voice/earpiece volume does not need to be raised/lowered.
High
Voice/earpiece volume is too low. Activate this option to increase the volume by 6 dB.
Voice codecs
Precondition: The
Settings for Bandwidth
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 phone number.
¤
Apply the voice codecs that your phone is to suggest with outgoing calls into the
Selected codecs
To do this, in the
can mark several entries using the Shift key or the Ctrl key). Click <Add.
¤
Move the voice codecs that you do not want the phone to use into the
list.
Also, select the voice codecs in the
¤
Sort the voice codecs in the
suggested to the receiving device when a connection is established. To do this, use
the Up and Down
When establishing a VoIP connection, the phone suggests the 1st 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 2nd voice codec on the list is
suggested, and so on.
If the receiving device does not accept any of the voice codecs in the
the connection is not established. An appropriate message will be displayed on the
handset.
Please note:
– You should only deactivate codecs (put them in the
son. The more codecs that are deactivated, the greater the danger that calls will not be able to be
established due to unsuccessful codec negotiations.
– With incoming calls, all supported voice codecs are always permitted.
142
Own Codec preference
area.
list.
Available codecs list click the voice codec that you want to apply (you
Selected codecs
buttons.
option is activated for the
Selected codecs list (see above) and click Remove>.
list into the order in which they should be
Available codecs
in the
Voice Quality
Available codecs
Selected codecs
list) if there is a particular rea-
list,