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Web configurator – configuring the telephone via a PC
Optimising voice quality for VoIP connections
Gigaset C470IP / GRC eng / A31008-M1916-T101-2-8U19 / web_server.fm / 20.12.07
Version 2.1, 08.01.2007
Voice Quality
Default settings for the codecs used are stored in your phone: one setting optimised for
narrow and one for wide bandwidths.
¤ Activate one of the options Optimized for low bandwidth / Optimized for high bandwidth if
you wish to accept a default setting for all VoIP connections. The settings are shown
in the Settings for Connections area and cannot be changed.
¤ Activate the Own Codec preference option if you wish to select and set connection-spe-
cific voice codecs yourself (see "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 increase the volume by 6 dB.
Voice codecs
Precondition: The Own Codec preference option is activated for the Voice Quality in the
Settings for Bandwidth area.
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 list.
To do this, in the Available codecs list click the voice codec that you want to apply (you
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 Available codecs
list.
Also, select the voice codecs in the Selected codecs list (see above) and click Remove>.
Please note: If only one VoIP connection is permitted, the following VoIP network services are no
longer available:
– Call waiting
Call waiting is not displayed during a call via VoIP
– External consultation call from a VoIP call
– Toggling and initiating a conference call via VoIP
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