User`s manual

SIP User's Manual 90 Document #: LTRT-83303
Mediant 1000 & Mediant 600
Parameter Description
Comfort Noise Generation
Negotiation
[ComfortNoiseNegotiation]
Enables negotiation and usage of Comfort Noise (CN).
 [0] Disable = Disable (default).
 [1] Enable = Enable.
The use of CN is indicated by including a payload type for CN on
the media description line of the SDP. The device can use CN with
a codec whose RTP timestamp clock rate is 8,000 Hz
(G.711/G.726). The static payload type 13 is used. The use of CN
is negotiated between sides. Therefore, if the remote side doesn't
support CN, it is not used.
Note: Silence Suppression must be enabled to generate CN.
Analog Signal Transport Type
[AnalogSignalTransportType]
Determines the analog signal transport type.
 [0] Ignore Analog Signals = Ignore (default)
 [1] RFC2833 Analog Signal Relay = Transfer hookflash via
RFC 2833
Note: This parameter is applicable only to Mediant 1000.
RTP Base UDP Port
[BaseUDPPort]
Lower boundary of UDP port used for RTP, RTCP (RTP port + 1)
and T.38 (RTP port + 2). The upper boundary is the Base UDP
Port + 10 * (number of device's channels).
The range of possible UDP ports is 6,000 to 64,000. The default
base UDP port is 6000.
For example: If the Base UDP Port is set to 6000 (default) then:
1) The first channel uses the following ports RTP 6000, RTCP
6001, and T.38 6002, 2) the second channel uses RTP 6010,
RTCP 6011, and T.38 6012, 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 Product Reference Manual.
Remote RTP Base UDP Port
[RemoteBaseUDPPort]
Determines the lower boundary of UDP ports used for RTP, RTCP
and T.38 by a remote device. If this parameter is set to a non-zero
value, ThroughPacket™ (RTP multiplexing) is enabled. The device
uses this parameter (and BaseUDPPort) to identify and distribute
the payloads from the received multiplexed IP packet to the
relevant channels.
The valid range is the range of possible UDP ports: 6,000 to
64,000.
The default value is 0 (i.e., RTP multiplexing is disabled).
For detailed information on RTP multiplexing, refer to RTP
Multiplexing (ThroughPacket) on page 414.
Notes:
 The value of this parameter on the local device must equal the
value of BaseUDPPort on the remote device.
 To enable RTP multiplexing, the parameters
L1L1ComplexTxUDPPort and L1L1ComplexRxUDPPort must
be set to a non-zero value.
 When VLANs are implemented, RTP multiplexing is not
supported.