Version 6.4  621  March 2012 
SIP User's Manual   A. Configuration Parameters Reference 
Parameter  Description 
FORMAT CodersGroup0_Index = CodersGroup0_Name, 
CodersGroup0_pTime, CodersGroup0_rate, 
CodersGroup0_PayloadType, CodersGroup0_Sce; 
CodersGroup0 0 = g711Alaw64k, 20, 0, 255, 0; 
CodersGroup0 1 = eg711Ulaw, 10, 0, 71, 0; 
CodersGroup0 2 = eg711Ulaw, 10, 0, 71, 0; 
[ \CodersGroup0 ] 
[ CodersGroup1 ] 
FORMAT CodersGroup1_Index = CodersGroup1_Name, 
CodersGroup1_pTime, CodersGroup1_rate, 
CodersGroup1_PayloadType, CodersGroup1_Sce; 
CodersGroup1 0 = Transparent, 20, 0, 56, 0; 
CodersGroup1 1 = g726, 20, 0, 23, 0; 
[ \CodersGroup1 ] 
The table below lists the supported coders: 
Coder Name  Packetization Time 
(msec) 
Rate 
(kbps) 
Payload 
Type 
Silence Suppression 
G.711 A-law 
[g711Alaw64
k] 
10, 20 (default), 30, 
40, 50, 60, 80, 100, 
120 
Always 
64 
Always 8  Disable [0] 
Enable [1] 
G.711 U-law 
[g711Ulaw64
k] 
10, 20 (default), 30, 
40, 50, 60, 80, 100, 
120 
Always 
64 
Always 0  Disable [0] 
Enable [1] 
G.711A-
law_VBD 
[g711AlawV
bd] 
10, 20 (default), 30, 
40, 50, 60, 80, 100, 
120 
Always 
64 
Dynamic (0-
127) 
N/A 
G.711U-
law_VBD 
[g711UlawV
bd] 
10, 20 (default), 30, 
40, 50, 60, 80, 100, 
120 
Always 
64 
Dynamic (0-
127) 
N/A 
G.722 
[g722] 
20 (default), 40, 60, 
80, 100, 120 
64 
(default) 
Always 9  N/A 
G.723.1 
[g7231] 
30 (default), 60, 90, 
120 
5.3 [0] 
(default), 
6.3 [1] 
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-
127) 
Default is 23 
Disable [0] 
Enable [1] 
G.727 
ADPCM 
10, 20 (default),  30, 
40, 50, 60, 80, 100, 
120 
16, 24, 
32, 40 
Dynamic (0-
127) 
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] 
GSM-FR 
[gsmFullRat
e] 
20 (default), 40, 60, 
80 
Always 
13 
Always 3  Disable [0] 
Enable [1] 
GSM-EFR 
[gsmEnhanc
edFullRate] 
0, 20 (default), 30, 
40, 50, 60, 80, 100 
12.2  Dynamic (0-
127) 
Disable [0] 
Enable [1] 
MS-GSM 
[gsmMS] 
40 (default)  Always 
13 
Always 3  Disable [0] 
Enable [1]