Version 6.2 421 February 2011
SIP User's Manual 10. Configuration Parameters Reference
Parameter Description
The default value is 0 (i.e., RTP multiplexing is disabled).
For detailed information on RTP multiplexing, see RTP
Multiplexing (ThroughPacket) on page 310.
Notes:
The value of this parameter on the local device must
equal the value of BaseUDPPort on the remote device.
When VLANs are implemented, RTP multiplexing is not
supported.
This parameter can also be configured per IP Profile,
using the IPProfile parameter.
EMS: No Op Enable
[NoOpEnable]
Enables or disables 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.
EMS: No Op Interval
[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.
EMS: No Op Payload Type
[RTPNoOpPayloadType]
Determines 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 value is 120.
Note: When defining this parameter, ensure that it doesn't
cause collision with other payload types.
Web: RTCP Packet Interval
EMS: Packet Interval
[RTCPInterval]
Defines the time interval (in msec) between adjacent RTCP
reports.
The interval range is 0 to 65,535. The default interval is
5,000.
Web: Disable RTCP Interval
Randomization
EMS: Disable Interval Randomization
[DisableRTCPRandomize]
Controls whether RTCP report intervals are randomized or
whether each report interval accords exactly to the
parameter RTCPInterval.
[0] Disable = Randomize (default)
[1] Enable = No Randomize
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