Siemens Gigaset CE450 IP R User Manual page 100

CE 450 IP R / IM-Ost english / A31008-M1817-R601_1-7619 / web_server.fm / 02.03.2007
Optimising voice quality for VoIP connections
Voice Quality
Default settings for the codecs used are stored in your phone: one setting optimised for
narrow bandwidths and one setting optimised for wide bandwidths.
¤
Activate one of the options
you wish to accept a default setting for all VoIP connections. The settings are shown
in the
¤
Activate the
specific voice codecs yourself (see section "Area: Settings for 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 reduce 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
(you can mark several entries using the Shift key or the Ctrl key). Click on the
button.
¤
Move the voice codecs that you do not want the phone to use into the
list.
Also, select the voice codecs in the
Remove>
¤
Sort the voice codecs in the
suggested to the receiving device when a connection is established. To do this, use
the
When establishing a VoIP connection, the phone suggests the 1st voice codec in the
Selected codecs
accept this voice codec (e.g. because it is not supported), the 2nd voice codec in the list
is suggested and so on.
Settings for Connections
Own Codec preference
Own Codec preference
area.
list.
Available codecs
button.
Up and Down buttons.
list to the receiving device to begin with. If the receiving device does not
Optimized for low bandwidth
area and cannot be changed.
option if you wish to select and set connection-
option is activated for the
list click on the voice codec that you want to apply
Selected codecs
Selected codecs list into the order in which they should be
/
Optimized for high bandwidth
Voice Quality
Available codecs
list (see above) and click on the
if
in the
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