320HD IP Phone
Administrator's Manual
72
Document #: LTRT-08107
4.2.5.3 Codec Parameters
Table
4-15: Codec Configuration File 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. If you
do wish 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
[1]
(default) - Enabled
voip/codec/codec_info
/%d/name
Name of the codec. The variable
%d
depicts the index number of the codec
entry and its priority, where the first codec (i.e.
voip/codec/codec_info/0/name=…
) has the highest priority. The default
order of codec priority from highest to lowest is G.722, G.711 Mu-Law,
G.711 A-Law, G.729, and then G.723.
[G722]
G.722
[PCMA]
G.711 A-Law
[PCMU]
G.711 Mu-Law
[G729]
G.729
[G723]
G.723
For example,
voip/codec/codec_info/0/name=G722
.
voip/codec/codec_info
/%d/ptime
Packetization time - length of the digital voice segment that each packet
holds.
The default is 20 millisecond packets, excluding G.723 which is 30
millisecond packets.
voip/codec/g723_bitrate
Low or high bit rate for G.723.
[LOW]
Low
[HIGH]
High
(default)
voip/codec/g722_bitrate
G.722 bit rate.
[G722_64K]
(default)
[G722_56K]
[G722_48K]
Note:
Currently, only 64bps is supported.
Summary of Contents for 300HD Series
Page 2: ......
Page 8: ...320HD IP Phone Administrator s Manual 8 Document LTRT 08107 Reader s Notes ...
Page 12: ...320HD IP Phone Administrator s Manual 12 Document LTRT 08107 Reader s Notes ...
Page 54: ...320HD IP Phone Administrator s Manual 54 Document LTRT 08107 Reader s Notes ...
Page 92: ...320HD IP Phone Administrator s Manual 92 Document LTRT 08107 Reader s Notes ...
Page 96: ...320HD IP Phone Administrator s Manual 96 Document LTRT 08107 Reader s Notes ...
Page 109: ...Administrator s Manual 7 Specifications Version 1 4 109 July 2010 Reader s Notes ...