Rtp, Rtcp And T.38 Parameters; Table 6-57: Rtp/Rtcp And T.38 Parameters - AudioCodes Mediant 2000 User Manual

Parameter
EMS: Tx DTMF Relay Hang
Over Time (msec)
[TxDTMFHangOverTime]
Web: Special Digit
Representation
EMS: Use Digit For Special
DTMF
[UseDigitForSpecialDTMF]

6.16.6 RTP, RTCP and T.38 Parameters

The RTP, RTCP and T.38 parameters are described in the table below.
Parameter
Web: Dynamic Jitter Buffer Minimum
Delay
EMS: Minimal Delay (dB)
[DJBufMinDelay]
Web: Dynamic Jitter Buffer
Optimization Factor
EMS: Opt Factor
[DJBufOptFactor]
Web: RTP Redundancy Depth
EMS: Redundancy Depth
[RTPRedundancyDepth]
Web: Enable RTP Redundancy
Negotiation
[EnableRTPRedundancyNegotiation]
SIP User's Manual
Defines the Voice Silence time (in msec) after detecting the end of
DTMF or MF digits at the Tel / PSTN side when the DTMF
Transport Type is either Relay or Mute.
Valid range is 0 to 2,000 msec. The default is 1,000 msec.
Defines the representation for 'special' digits ('*' and '#') that are
used for out-of-band DTMF signaling (using SIP INFO/NOTIFY).

[0] Special = Uses the strings '*' and '#' (default).

[1] Numeric = Uses the numerical values 10 and 11.

Table 6-57: RTP/RTCP and T.38 Parameters

Minimum delay (in msec) for the Dynamic Jitter Buffer.
The valid range is 0 to 150. The default delay is 10.
Note: For more information on Jitter Buffer, refer to
''Dynamic Jitter Buffer Operation''
Dynamic Jitter Buffer frame error / delay optimization factor.
The valid range is 0 to 13. The default factor is 10.
Notes:

Set to 13 for data (fax and modem) calls.

For more information on Jitter Buffer, refer to ''Dynamic
Jitter Buffer Operation''
Determines whether the device generates redundant
packets. This can be used for packet loss, where the
missing information (audio) can be reconstructed at the
receiver end from the redundant data that arrives in the
subsequent packet(s).

[0] 0 = Disable the generation of redundant packets
(default).

[1] 1 = Enable the generation of RFC 2198 redundancy
packets (payload type defined by the parameter
RFC2198PayloadType).
Note: The RTP redundancy dynamic payload type can be
included in the SDP, by using the parameter
EnableRTPRedundancyNegotiation.
Determines whether the device includes the RTP
redundancy dynamic payload type in the SDP, according to
RFC 2198.

[0] Disable (default)

[1] Enable
When enabled, the device includes in the SDP message
the RTP payload type "RED" and the payload type
378
Description
Description
on page 423
on page 423 .
Document #: LTRT-68809
Mediant 2000
.