AudioCodes Mediant 800B User Manual page 1008

Parameter
RTP Redundancy Depth
RTP-redundancy-depth
[RTPRedundancyDepth]
Enable RTP Redundancy
Negotiation
rtp-rdcy-nego-enbl
[EnableRTPRedundancyNegotiation]
RFC 2198 Payload Type
RTP-redundancy-payload-type
[RFC2198PayloadType]
Packing Factor
[RTPPackingFactor]
RFC 2833 TX Payload Type
telephony-events-payload-
type-tx
[RFC2833TxPayloadType]
User's Manual

[1] RFC 2833 Analog Signal Relay = Transfer hookflash
using RFC 2833.
Note: The parameter is applicable only to FXS and FXO
interfaces.
Global parameter that enables the device to generate RFC
2198 redundant packets. You can also configure this
functionality per specific calls, using IP Profiles
(IpProfile_RTPRedundancyDepth). For a detailed description
of the parameter and for configuring this functionality in the IP
Profile table, see ''Configuring IP Profiles'' on page 396.
Note: If this functionality is configured for a specific IP Profile,
the settings of this global parameter is ignored for calls
associated with the IP Profile.
Enables the device to include the RTP redundancy dynamic
payload type in the SDP (according to RFC 2198).

[0] Disable (default)

[1] Enable = The device includes in the SDP message the
RTP payload type "RED" and the payload type configured
by the parameter RFC2198PayloadType.
a=rtpmap:<PT> RED/8000
Where <PT> is the payload type as defined by
RFC2198PayloadType. The device sends the INVITE
message with "a=rtpmap:<PT> RED/8000" and responds
with a 18x/200 OK and "a=rtpmap:<PT> RED/8000" in the
SDP.
Notes:

The parameter is applicable only to the Gateway
application.

For this feature to be functional, you must also set the
parameter RTPRedundancyDepth to 1 (i.e., enabled).

Currently, the negotiation of "RED" payload type is not
supported and therefore, it should be configured to the
same PT value for both parties.
Defines the RTP redundancy packet payload type (according
to RFC 2198).
The valid value is 96 to 127. The default is 104.
Note: The parameter is applicable only if the
RTPRedundancyDepth parameter is set to 1.
N/A. Controlled internally by the device according to the
selected coder.
Defines the Tx RFC 2833 DTMF relay dynamic payload type
for outbound calls.
The valid range is 96 to 127. The default is 96.
Note: When RFC 2833 payload type negotiation is used (i.e.,
the parameter FirstTxDTMFOption is set to 4), this payload
type is used for the received DTMF packets. If negotiation isn't
used, this payload type is used for receive and for transmit.
1008
Mediant 800B Gateway and E- SBC
Description
Document #: LTRT-10296