400HD Series IP Phones
Administrator's Manual 128 Document #: LTRT-11950
20.4 Configuring Codecs
Codecs can be configured using the Web interface or Configuration File.
To define the Codecs using the Web interface:
1. Access the Media Streaming page (Configuration tab > Voice Over IP menu > Media
Streaming).
Figure 20-3: Web Interface - Media Streaming - Codecs
2. Configure the parameters using the table below as reference, and then click Submit.
To define the Codecs using the Configuration File:
• Use the table below as reference.
Table 20-4: Codec Parameters
Parameter Description
[voip/codec/codec_info/%d/enabled]
Determines the codecs that you want to implement and
their priority. Up to five codecs can be configured, where
the first codec (i.e., voip/codec/0/…) has the highest
priority. To make a call, at least one codec must be
configured. In addition, for best performance it is
recommended to select as many codecs as possible.
When you start a call to a remote party, your available
codecs are compared with the remote party's to determine
the codec to use. If there is no codec that both parties have
made available, the call attempt fails. Note that if more
than one codec is common to both parties, you cannot
force which of the common codecs are used by the remote
party's client. To force the use of a specific codec,
configure the list with only that specific codec.
The %d variable stands for the priority:
[0] - Disabled
(default) - Enabled
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