AudioCodes Mediant 500L - Configuring Various Codec Attributes

Version 7.2 433 Mediant 500L Gateway & E-SBC
User's Manual 20. Coders and Profiles
Coder Name Packetization Time
(msec)
[1] 10, [2] 20, [3] 30, [4] 40,
[5] 50, [6] 60, [8] 80, [9] 90,
[10] 100, [12] 120
Rate (kbps) Payload
Type
Silence
Suppression
ilbc
[19]
30 (default), 60, 90, 120 [34] 13
SILK-NB
silk-nb
[35]
20 (default), 40, 60, 80,
and 100
[19] 8 Dynamic
(default 76)
N/A
SILK-WB
silk-wb
[36]
20 (default), 40, 60, 80,
and 100
[43] 16 Dynamic
(default 77)
N/A
T.38
t-38
[4]
N/A N/A N/A N/A
T.38 Over RTP
t-38-over-rtp
[43]
N/A N/A Dynamic
(default 106)
N/A
Opus
opus
[40]
20 (default), 40, 60, 80,
120
N/A Dynamic
(default 111)
N/A
20.1.2 Configuring Various Codec Attributes
The following procedure describes how to configure various coder attributes such as
bitrate.
 To configure codec attributes:
1. Open the Coder Settings page (Setup menu > Signaling & Media tab > Coders &
Profiles folder > Coder Settings).
2. Configure the following parameters:
• AMR coder:
♦ 'AMR Payload Format' (AmrOctetAlignedEnable): Defines the AMR payload
format type:
• SILK coder (Skype's default audio codec):
♦ 'Silk Tx Inband FEC': Enables forward error correction (FEC) for the SILK
coder.