User's Manual 588 Document #: LTRT-68822
Mediant 2000
Parameter Description
[DTMFGenerationTwist]
frequency components in the DTMF signal. Positive decibel values
cause the higher frequency component to be stronger than the
lower one. Negative values cause the opposite effect. For any
parameter value, both components change so that their average is
constant.
The valid range is -10 to 10 dB. The default is 0 dB.
Note: For this parameter to take effect, a device reset is required.
EMS: DTMF Inter Interval
(msec)
[DTMFInterDigitInterval]
Defines the time (in msec) between generated DTMF digits to
PSTN side (if TxDTMFOption = 1, 2 or 3).
The default is 100 msec. The valid range is 0 to 32767.
EMS: DTMF Length (msec)
[DTMFDigitLength]
Defines the time (in msec) for generating DTMF tones to the PSTN
side (if TxDTMFOption = 1, 2 or 3). It also configures the duration
that is sent in INFO (Cisco) messages.
The valid range is 0 to 32767. The default is 100.
EMS: Rx DTMF Relay Hang
Over Time (msec)
[RxDTMFHangOverTime]
Defines the Voice Silence time (in msec) after playing DTMF or MF
digits to the Tel/PSTN side that arrive as Relay from the IP side.
Valid range is 0 to 2,000 msec. The default is 1,000 msec.
EMS: Tx DTMF Relay Hang
Over Time (msec)
[TxDTMFHangOverTime]
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.
Web/EMS: NTE Max Duration
[NTEMaxDuration]
Defines the maximum time for sending Named Telephony Events /
NTEs (RFC 4733/2833 DTMF relay) to the IP side, regardless of
the DTMF signal duration on the TDM side.
The range is -1 to 200,000,000 msec. The default is -1 (i.e., NTE
stops only upon detection of an End event).
45.10.4 RTP, RTCP and T.38 Parameters
The RTP, RTCP and T.38 parameters are described in the table below.
RTP/RTCP and T.38 Parameters
Parameter Description
Web: Dynamic Jitter Buffer
Minimum Delay
EMS: Minimal Delay (dB)
[DJBufMinDelay]
Defines the minimum delay (in msec) for the Dynamic Jitter Buffer.
The valid range is 0 to 150. The default delay is 10.
Notes:
 This parameter can also be configured in an IP Profile and/or a
Tel Profile.
 For more information on Jitter Buffer, see Dynamic Jitter Buffer
Operation on page 165.
Web: Dynamic Jitter Buffer
Optimization Factor
EMS: Opt Factor
[DJBufOptFactor]
Defines the Dynamic Jitter Buffer frame error/delay optimization
factor.
The valid range is 0 to 12. The default factor is 10.
Notes:
 For data (fax and modem) calls, set this parameter to 12.

This parameter can also be configured in an IP Profile and/or a
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