Phone Parameters - Administration Nur für den internen Gebrauch
A31003-S2000-R102-16-7620 02/2016
190 Provisioning Service, Developer’s Guide
c04.fm
Speech
4.8 Speech
4.8.1 Codec preferences
The settings for each codec are specified by assigning a corresponding index to a generic pa-
rameter. The following XML snippet allows the use of the G.729 codec, and assigns a 10ms
packet size as well as a selection rank of 2 to this codec.
The index number 3 is assigned to the G.729 codec, which is identified internally by the code
number 2:
<Item name="codec-type" index="3">2</Item>
G.729 is allowed:
<Item name="codec-allowed" index="3">true</Item>
The packet size for G.729 is set to 10ms:
<Item name="codec-packet-size" index="3">0</Item>
G.729 has selection rank 2, that is, it will be second choice when the codec is negotiated:
<Item name="codec-rank" index="3">2</Item>
>
The same packet size must be used for all codecs.
WBM Name Item name Type Values Description
Silence suppres-
sion
audio-
silence-
suppression
Boolean true/false
Default: false
Suppression of data
transmission on no con-
versation.
Allow "HD" icon allow-hd-
icon-display
Boolean true/false
Default: true
Switches the "HD" icon
displayed if and when the
OpenStage is connected
using a high quality
(G.722 or better) codec.
Packet size codec-
packet-size
<index>
Enumer-
ation
0=10 ms;
1=20 ms;
2=Automatic;
3=30ms;
Default: 2
Size of RTP packets in
milliseconds.
codec-type Enumer-
ation
0=G.711;
1=G.722;
2=G.729
Binds a codec type to a
set of items using the in-
dex.
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