AudioCodes Mediant 1000

Version 7.2 407 Mediant 1000B Gateway & E-SBC
User's Manual 19. Coders and Profiles
Parameter Description
jitter-buffer-optimization-factor
[IpProfile_JitterBufOptFactor]
The valid range is 0 to 12. The default factor is 10.
For more information on Jitter Buffer, see Configuring the Dynamic
Jitter Buffer on page 189.
Note:
 For data (fax and modem) calls, set the parameter to 12.
 The corresponding global parameter is DJBufOptFactor.
Silence Suppression
sce
[IpProfile_SCE]
Enables the Silence Suppression feature. When enabled, the device,
upon detection of silence period during a call does not send packets,
thereby conserving bandwidth during the VoIP call.
 [0] Disable (default)
 [1] Enable = Silence Suppression is enabled.
 [2] Enable Without Adaptation = A single silence packet is sent
during a silence period (applicable only to G.729).
Note:
 If the coder is G.729, the value of the 'annexb' parameter of the
'a=fmtp' attribute in the SDP is determined by the following:

The parameter is set to Disable [0]: 'annexb=no'

The parameter is set to Enable [1]: 'annexb=yes'

The parameter is set to Enable Without Adaptation [2] and
IsCiscoSCEMode to [0]: 'annexb=yes'

Enable Without Adaptation is set to Enable Without
Adaptation [2] and IsCiscoSCEMode to [1]: 'annexb=no'
 The corresponding global parameter is
EnableSilenceCompression.
Jitter Buffer Max Delay
jitter-buffer-max-delay
[IpProfile_JitterBufMaxDelay]
Defines the maximum delay and length (in msec) of the Jitter Buffer.
The valid range is 150 to 2,000. The default is 250.
Voice
Echo Canceler
echo-canceller
[IpProfile_EnableEchoCancell
er]
Enables the device's Echo Cancellation feature (i.e., echo from voice
calls is removed).
 [0] Disable
 [1] Line (default)
For a detailed description of the Echo Cancellation feature, see
Configuring Echo Cancellation on page 178.
Note: The corresponding global parameter is EnableEchoCanceller.
Input Gain
input-gain
[IpProfile_InputGain]
Defines the pulse-code modulation (PCM) input gain control (in
decibels). For the Gateway application: Defines the level of the
received signal for Tel-to-IP calls.
The valid range is -32 to 31 dB. The default is 0 dB.
Note: The corresponding global parameter is InputGain.
Voice Volume
voice-volume
[IpProfile_VoiceVolume]
Defines the voice gain control (in decibels). For the Gateway
application: Defines the level of the transmitted signal for IP-to-Tel
calls.
The valid range is -32 to 31 dB. The default is 0 dB.
Note: The corresponding global parameter is VoiceVolume.
SBC Signaling