AudioCodes Mediant 3000 User Manual

Version 7.0 393 Mediant 3000
User's Manual 20. Coders and Profiles
Parameter Description
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.
RTP IP DiffServ
[IpProfile_IPDiffServ]
Defines the DiffServ value for Premium Media class of service
(CoS) content.
The valid range is 0 to 63. The default is 46.
Note: The corresponding global parameter is
PremiumServiceClassMediaDiffServ.
Signaling DiffServ
[IpProfile_SigIPDiffServ]
Defines the DiffServ value for Premium Control CoS content (Call
Control applications).
The valid range is 0 to 63. The default is 40.
Note: The corresponding global parameter is
PremiumServiceClassControlDiffServ.
Silence Suppression
[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).
Notes:
 If the coder is G.729, the value of the 'annexb' parameter of the
'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.
RTP Redundancy Depth
[IpProfile_RTPRedundancyDept
h]
Enables the device to generate RFC 2198 redundant packets. This
can be used for packet loss where the missing information (audio)
can be reconstructed at the receiver's end from the redundant data
that arrives in subsequent packets. This is required, for example, in
wireless networks where a high percentage (up to 50%) of packet
loss can be experienced.
 [0] 0 = (Default) Disable.
 [1] 1 = Enable - previous voice payload packet is added to
current packet.
 [2] 2 = Previous two voice payload packets are added to the
current packet.
 [3] 3 = Previous three voice payload packets are added to the
current packet.
 [4] 4 = Previous four voice payload packets are added to the
current packet.
 [5] 5 = Previous five voice payload packets are added to the
current packet. To use this RTP redundancy level, you need to
set the DSPVersionTemplateNumber parameter to 4 or 7. The

AudioCodes Mediant 3000 Specifications

General

Brand	AudioCodes
Model	Mediant 3000
Category	Gateway
Language	English