User's Manual  294  Document #: LTRT-42060 
  Mediant 2600 E-SBC 
2.  Configure coders according to the parameters described in the table below. 
3.  Click Submit, and then reset the device with a save ("burn") to flash memory. 
Table  19-1: Coders Table Parameter Descriptions 
Parameter  Description 
Coder Name 
CLI: name 
[CodersGroup0_Name] 
Defines the coder. 
Note: Each coder type (e.g., G.729) can be configured only once 
in the table. 
Packetization Time 
CLI: p-time 
[CodersGroup0_pTime] 
Defines the packetization time (in msec) for the coder. The 
packetization time determines how many coder payloads are 
combined into a single RTP packet. 
Rate 
CLI: rate 
[CodersGroup0_rate] 
Defines the bit rate (in kbps) for the coder. 
Payload Type 
CLI: payload-type 
[CodersGroup0_PayloadType] 
Defines the payload type if the payload type (i.e., format of the 
RTP payload) for the coder is dynamic. 
 
Silence Suppression 
CLI: silence-suppression 
[CodersGroup0_Sce] 
Enables silence suppression for the coder. 
  [0] Disable (Default) 
  [1] Enable 
  [2] Enable w/o Adaptation =Applicable only to G.729. 
Notes:  
  If G.729 is configured with silence suppression disabled, the 
device includes 'annexb=no' in the SDP of the relevant SIP 
messages. If silence suppression is enabled or set to Enable 
w/o Adaptations, 'annexb=yes' is included. An exception to 
this logic is when the remote gateway is Cisco equipment 
(IsCiscoSCEMode). 
 
The table below lists the supported coders: 
Table  19-2: Supported Coders 
Coder Name  Packetization Time 
(msec) 
Rate (kbps)  Payload 
Type 
Silence 
Suppression 
G.711 A-law 
[g711Alaw64k] 
10, 20 (default), 30, 40, 
50, 60, 80, 100, 120 
64  8 
  [0] Disable 
 
Enable 
G.711 U-law 
[g711Ulaw64k] 
10, 20 (default), 30, 40, 
50, 60, 80, 100, 120 
64  0 
  [0] Disable 
  [1] Enable 
G.711A-law_VBD 
[g711AlawVbd] 
10, 20 (default), 30, 40, 
50, 60, 80, 100, 120 
64  Dynamic (0-
127); 
Default 180 
N/A 
G.711U-law_VBD 
[g711UlawVbd] 
10, 20 (default), 30, 40, 
50, 60, 80, 100, 120 
64  Dynamic (0-
127); 
Default 120 
N/A 
G.722 
[g722] 
20 (default), 40, 60, 80, 
100, 120 
64 (default)  9  N/A 
G.723.1 
[g7231] 
30 (default), 60, 90, 120, 
150 
  [0] 5.3 
(default) 
 
6.3 
4 
  [0] Disable 
  [1] Enable