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
.
