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Web configurator Optimising voice quality for VoIP connections
Gigaset C470-475 IP / EN for IM-Ost / A31008-xxxx-xxxx-x-xxxx / web_server.fm / 16.8.07
Version 2.1, 08.01.2007
Both sides of a phone connection (caller/sender side and receiver side) must use the same
voice codec. The voice codec is negotiated between the sender and the recipient when
establishing a connection.
You can influence the voice quality by selecting (bearing in mind the bandwidth of your
DSL connection) the voice codecs your phone is to use, and specifying the order in which
the codecs are to be suggested when a VoIP connection is established.
Area: Settings for Bandwidth
The settings in this area influence all VoIP connections (VoIP phone numbers).
Allow 1 VoIP call only
Generally speaking you can make two VoIP calls at the same time on your phone. If,
however, your DSL connection has a narrow bandwidth, there may be problems if two
VoIP calls are made at the same time. The data is no longer transferred properly (long
voice delay, data losses etc.).
¤ Activate Yes next to Allow 1 VoIP call only to prevent any further parallel VoIP phone
connections being established.
¤ If you wish to permit two VoIP connections, activate the No option.
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.
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
VoIPon www.voipon.co.uk sales@voipon.co.uk Tel: +44 (0)1245 808195 Fax: +44 (0)1245 808299
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