AudioCodes E-SBC User Manual

CHAPTER68 Configuration Parameters Reference
Mediant 1000 Gateway & E-SBC | User's Manual
Parameter Description
■ When the device is configured to use V.152 to
negotiate audio and T.38 coders, the UDP port
published in SDP for RTP and for T38 must be
different. Therefore, set the T38UseRTPPort
parameter to 0.
'T38 Fax Max Buffer'
configure voip > sip-
definition settings > t38-
fax-mx-buff
[T38FaxMaxBufferSize]
Defines the maximum size (in bytes) of the device's
T.38 buffer. This value is included in the outgoing
SDP when T.38 is used for fax relay over IP.
The valid range is 500 to 3000. The default is 1,024.
No-Op Packets Parameters
no-operation-enable
[NoOpEnable]
Enables the transmission of RTP or T.38 No-Op
packets.
■ [0] = Disable (default)
■ [1] = Enable
This mechanism ensures that the NAT binding
remains open during RTP or T.38 silence periods.
[NoOpInterval] Defines the time interval in which RTP or T.38 No-Op
packets are sent in the case of silence (no RTP/T.38
traffic) when No-Op packet transmission is enabled.
The valid range is 20 to 65,000 msec. The default is
10,000.
Note: To enable No-Op packet transmission, use the
[NoOpEnable] parameter.
no-operation-interval
[RTPNoOpPayloadType]
Defines the payload type of No-Op packets.
The valid range is 96 to 127 (for the range of Dynamic
RTP Payload Type for all types of non hard-coded
RTP Payload types, refer to RFC 3551). The default
is 120.
Note: When defining the parameter, ensure that it
doesn't cause collision with other payload types.
RTP Control Protocol Extended Reports (RTCP XR) Parameters
For more information on RTCP XR, see Configuring RTCP XR.
'Enable RTCP XR'
configure voip > media rtp-
rtcp > voice-quality-
monitoring-enable
[VQMonEnable]
Enables voice quality monitoring and RTCP XR,
according to RFC 3611.
■ [0] Disable (default)
■ [1] Enable Fully = Calculates voice quality
metrics, uses them for QoE calculations, reports
them to OVOC (if configured), and sends them to
remote side using RTCP XR.
■ [2] Enable Calculation Only = Calculates voice
quality metrics, uses them for QoE calculations,
reports them to OVOC (if configured), but does not
send them to remote side using RTCP XR.
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AudioCodes E-SBC Specifications

General

Brand	AudioCodes
Model	E-SBC
Category	Gateway
Language	English