AudioCodes Mediant 3000 User Manual page 258


To configure the device's coders:
1. Open the Coders page (Configuration tab > VoIP menu > Coders and Profiles
submenu > Coders).
2. From the 'Coder Name' drop-down list, select the required coder.
3. From the 'Packetization Time' drop-down list, select the packetization time (in msec)
for the selected coder. The packetization time determines how many coder payloads
are combined into a single RTP packet.
4. From the 'Rate' drop-down list, select the bit rate (in kbps) for the selected coder.
5. In the 'Payload Type' field, if the payload type (i.e., format of the RTP payload) for the
selected coder is dynamic, enter a value from 0 to 120 (payload types of 'well-known'
coders cannot be modified).
6. From the 'Silence Suppression' drop-down list, enable or disable the silence
suppression option for the selected coder.
7. Repeat steps 2 through 6 for the next optional coders.
8. Click Submit.
9. To save the changes to flash memory, see 'Saving Configuration' on page 520.
The table below lists the supported coders:
Coder Name
G.711 A-law
[g711Alaw64k]
G.711 U-law
[g711Ulaw64k]
G.711A-law_VBD
[g711AlawVbd]
G.711U-law_VBD
[g711UlawVbd]
G.722
[g722]
User's Manual
Figure 18-1: Coders Table Page
Supported Coders
Packetization Time
(msec)
10, 20 (default), 30, 40, 50,
60, 80, 100, 120
10, 20 (default), 30, 40, 50,
60, 80, 100, 120
10, 20 (default), 30, 40, 50,
60, 80, 100, 120
10, 20 (default), 30, 40, 50,
60, 80, 100, 120
20 (default), 40, 60, 80,
100, 120
Rate (kbps)
64
64
64
64
64 (default)
258
Mediant 3000
Payload Silence
Type Suppression

[0] Disable
8

[1] Enable

[0] Disable
0

[1] Enable
Dynamic (0- N/A
127)
Default is
180
Dynamic (0- N/A
127)
Default is
120
9 N/A
Document #: LTRT-89729