User's Manual 1024 Document #: LTRT-27045
Mediant 1000B Gateway & E-SBC
Parameter Description
DTMF Transport Type
configure voip > media voice >
DTMF-transport-type
[DTMFTransportType]
Determines the DTMF transport type.
 [0] Mute DTMF = DTMF digits are removed from the voice
stream and are not relayed to remote side.
 [2] Transparent DTMF = DTMF digits remain in the voice
stream.
 [3] RFC 2833 Relay DTMF = (Default) DTMF digits are removed
from the voice stream and are relayed to remote side according
to RFC 2833.
 [7] RFC 2833 Relay Decoder Mute = DTMF digits are sent
according to RFC 2833 and muted when received.
Note: The parameter is automatically updated if the parameters
FirstTxDTMFOption or RxDTMFOption are configured.
DTMF Volume (-31 to 0 dB)
configure voip > media voice >
DTMF-volume
[DTMFVolume]
Global parameter defining the DTMF gain control value (in decibels)
to the Tel side.
You can also configure the functionality per specific calls, using Tel
Profiles (TelProfile_DtmfVolume). For a detailed description of the
parameter and for configuring the functionality in the Tel Profiles
table, see Configuring Tel Profiles on page 428.
Note: If the functionality is configured for a specific Tel Profile, the
settings of the global parameter is ignored for calls associated with
the Tel Profile.
DTMF Generation Twist
configure voip > media voice >
DTMF-generation-twist
[DTMFGenerationTwist]
Defines the range (in decibels) between the high and low 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 the parameter to take effect, a device reset is required.
inter-digit-interval
[DTMFInterDigitInterval]
Defines the time (in msec) between generated DTMF digits to the
Tel side (if FirstTxDTMFOption = 1, 2 or 3).
The valid range is 0 to 32767. The default is 100.
[DTMFDigitLength] Defines the time (in msec) for generating DTMF tones to the Tel
side (if FirstTxDTMFOption = 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.
configure voip > media
voice > digit-hangover-
time-rx
[RxDTMFHangOverTime]
Defines the Voice Silence time (in msec) after playing DTMF or MF
digits to the Tel side that arrive as Relay from the IP side.
Valid range is 0 to 2,000 msec. The default is 1,000 msec.
configure voip > media voice >
digit-hangover-time-tx
[TxDTMFHangOverTime]
Defines the Voice Silence time (in msec) after detecting the end of
DTMF or MF digits at the Tel 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.
NTE Max Duration Defines the maximum time for sending Named Telephony Events /
NTEs (RFC 4733/2833 DTMF relay) to the IP side, regardless of
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