
SIP User's Manual 124 Document #: LTRT-65411
MediaPack Series
The coders supported by the device are listed in the table below:
Table 3-30: Supported Coders
Coder Name Packetization Time Rate Payload Type Silence Suppression
G.711 A-law
[g711Alaw64k]
10, 20 (default), 30,
40, 50, 60, 80, 100,
120
Always 64 Always 8
Disable [0]
Enable [1]
G.711 U-law
[g711Ulaw64k]
10, 20 (default), 30,
40, 50, 60, 80, 100,
120
Always 64 Always 0
Disable [0]
Enable [1]
G.729
[g729]
10, 20 (default), 30,
40, 50, 60, 80, 100
Always 8 Always 18
Disable [0]
Enable [1]
Enable w/o
Adaptations [2]
G.723.1
[g7231]
30 (default), 60, 90 5.3 [0], 6.3
[1] (default)
Always 4
Disable [0]
Enable [1]
G.726
[g726]
10, 20 (default), 30,
40, 50, 60, 80, 100,
120
16 [0], 24
[1], 32 [2]
(default)
40 [3]
Dynamic (0-
120)
Disable [0]
Enable [1]
Transparent
[Transparent]
20 (default), 40, 60,
80, 100, 120
Always 64 Dynamic (0-
120)
Disable [0]
Enable [1]
G.711A-law_VBD
[g711AlawVbd]
10, 20 (default), 30,
40, 50, 60, 80, 100,
120
Always 64 Dynamic (0-
120)
N/A
G.711U-law_VBD
[g711UlawVbd]
10, 20 (default), 30,
40, 50, 60, 80, 100,
120
Always 64 Dynamic (0-
120)
N/A
T.38
[t38fax]
N/A N/A N/A N/A
¾ To configure the device's coders, take these 9 steps:
1. Open the 'Coders' page (Configuration tab > Protocol Configuration menu >
Protocol Definition submenu > Coders page item).
Figure 3-60: Coders Page
2. From the 'Coder Name' drop-down list, select the coder you want to use. For the full
list of available coders and their corresponding attributes, refer to the table below.
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