AudioCodes Mediant 3000, User Manual

Page: 260 / 872

User's Manual 260 Document #: LTRT-89729
Mediant 3000
Coder Name Packetization Time
(msec)
Rate (kbps) Payload
Type
Silence
Suppression
EVRC-B (4GV)
[EvrcB] 20 (default), 40, 60, 80,
100, 120

[0] Variable
(default)

[1] 1/8

[2] 1/4

[3] 1/2

[4] Full
Dynamic (0-
127) N/A
iLBC
[iLBC] 20 (default), 40, 60, 80,
100, 120 15 (default) Dynamic (0-
127)

[0] Disable

[1] Enable
30 (default), 60, 90, 120 13
MS RTA (NB)
[ms_rta] 20 (default), 40, 60, 80 11800 115 N/A
MS RTA (WB)
[ms_rta_wb] 20 29000 114 N/A
Speex NB
[speex_nb] 20 2.15 (default);
5.95; 8; 11; 15;
18.2; 24.6; 3.95 78 N/A
Speex WB
[speex_wb] 20 3.95 (default);
5.75; 7.75; 9.8;
12.8; 16.8; 20.6;
23.8; 27.8; 34.2;
42.2 78 N/A
T.38
[t38fax]
N/A N/A N/A N/A
T.38 Version 3
[t38fax] - - - -
18.2 Configuring Coder Groups
The Coder Group Settings page allows you to define up to 10 groups of coders (termed
Coder Groups ). For each Coder Group, you can define up to 10 coders configured with
packetization time (ptime), rate, payload type, and silence suppression. The first coder in
the Coder Group table has the highest priority and is used by the device whenever
possible. If the remote side cannot use the first coder, the device attempts to use the next
coder, and so on.
Coder Groups can be used as follows:

Assigned to Tel Profiles in the Tel Profiles table (see Configuring Tel Profiles on page
261 ). This is applicable only to the GW/IP-to-IP application.

Assigned to IP Profiles in the IP Profiles table (see 'Configuring IP Profiles' on page
263 ). In this setup, they can be used as Extension coders and Allowed coders for the
SBC application.
Notes:
•
A specific coder can be selected only once per Coder Group.
•
For a list of supported coders, see 'Configuring Coders' on page 257 .
•
The Coder Group Settings table can also be configured using the table
ini file parameter, CodersGroup.