User`s manual

Mediant 1000
H.323 User's Manual 146 Document #: LTRT-83401
Table 5-29: Media Settings, RTP / RTCP Parameters
Parameter Description
Dynamic Jitter Buffer Minimum Delay
[DJBufMinDelay]
Minimum delay for the Dynamic Jitter Buffer.
The valid range is 0 to 150 milliseconds.
The default delay is 10 milliseconds.
Note: For more information on the Jitter Buffer, refer to Section 8.7 on
page 266.
Dynamic Jitter Buffer Optimization
Factor
[DJBufOptFactor]
Dynamic Jitter Buffer frame error / delay optimization factor.
The valid range is 0 to 13.
The default factor is 10.
Note 1: Set to 13 for data (fax & modem) calls.
Note 2: For more information on the Jitter Buffer, refer to Section
8.7
on page 266.
RTP Redundancy Depth
[RTPRedundancyDepth]
Enter [0] to disable the generation of redundant packets (default).
Enter [1] to enable the generation of RFC 2198 redundancy packets.
Packing Factor
[RTPPackingFactor]
N/A.
Controlled internally by the gateway according to the selected coder.
Basic RTP Packet Interval
[BasicRTPPacketInterval]
N/A.
Controlled internally by the gateway according to the selected coder.
Note: This parameter should not be used. Use the ‘Coders’ screen
under ‘Protocol Definition’ instead.
RTP Directional Control
[RTPDirectionControl]
N/A.
Controlled internally by the gateway according to the selected coder.
RFC 2833 TX Payload Type
[RFC2833TxPayloadType]
N/A.
Use the ini file parameter RFC2833PayloadType instead.
RFC 2833 RX Payload Type
[RFC2833RxPayloadType]
N/A.
Use the ini file parameter RFC2833PayloadType instead.
RFC 2198 Payload Type
[RFC2198PayloadType]
RTP redundancy packet payload type, according to RFC 2198.
The range is 96-127. The default is 104.
Applicable if ‘RTP Redundancy Depth=1’
Fax Bypass Payload Type
[FaxBypassPayloadType]
Determines the fax bypass RTP dynamic payload type.
The valid range is 96 to 120. The default value is 102.
Enable RFC 3389 CN Payload Type
[EnableStandardSIDPayloadType]
Determines whether Silence Indicator (SID) packets that are sent and
received are according to RFC 3389.
Disable [0] = G.711 SID packets are sent in a proprietary method
(default).
Enable [1] = SID (comfort noise) packets are sent with the RTP SID
payload type according to RFC 3389. Applicable to G.711 and G.726
coders.
Analog Signal Transport Type
[AnalogSignalTransportType]
Ignore analog signals [0] = Hook-flash isn’t transferred to the remote
side (default).
RFC 2833 analog signal relay [1] = Hook-flash is transferred via RFC
2833.
RTP Base UDP Port
[BaseUDPPort]
Lower boundary of UDP port used for RTP, RTCP (Real-Time Control
Protocol) (RTP port + 1) and T.38 (RTP port + 2). The upper boundary
is the Base UDP Port + 10 * (number of gateway’s channels).
The range of possible UDP ports is 4000 to 64000.
The default base UDP port is 4000.
For example:
If the Base UDP Port is set to 4000 (the default) then:
The first channel uses the following ports: RTP 4000, RTCP 4001 and
T.38 4002,
the second channel uses: RTP 4010, RTCP 4011 and T.38 4012, etc.
Note: If RTP Base UDP Port is not a factor of 10, the following
message is generated: ‘invalid local RTP port’.
For detailed information on the default RTP/RTCP/T.38 port allocation,
refer to the Section
D.3 on page 394.