Version 6.2 417 February 2011
SIP User's Manual 10. Configuration Parameters Reference
Parameter Description
Web: V.34 Modem Transport Type
EMS: V34 Transport
[V34ModemTransportType]
V.90/V.34 Modem Transport Type used by the device.
 [0] Disable = Disable (Transparent)
 [1] Enable Relay = N/A
 [2] Enable Bypass = (default)
 [3] Events Only = Transparent with Events
Note: This parameter can also be configured per IP Profile,
using the IPProfile parameter (see ''Configuring IP Profiles'' on
page 122).
EMS: Bell Transport Type
[BellModemTransportType]
Determines the Bell modem transport method.
 [0] = Transparent (default)
 [2] = Bypass
 [3] = Transparent with events
10.11.4 DTMF Parameters
The dual-tone multi-frequency (DTMF) parameters are described in the table below.
Table 10-34: DTMF Parameters
Parameter Description
Web/EMS: DTMF Transport
Type
[DTMFTransportType]
Determines the DTMF transport type.
 [0] DTMF Mute = Erases digits from voice stream and doesn't
relay to remote.
 [2] Transparent DTMF = Digits remain in voice stream.
 [3] RFC 2833 Relay DTMF = Erases digits from voice stream
and relays to remote according to RFC 2833 (default).
 [7] RFC 2833 Relay Rcv Mute = DTMFs are sent according to
RFC 2833 and muted when received.
Note: This parameter is automatically updated if the parameters
TxDTMFOption or RxDTMFOption are configured.
Web: DTMF Volume (-31 to 0
dB)
EMS: DTMF Volume (dBm)
[DTMFVolume]
DTMF gain control value (in decibels) to the or analog side.
The valid range is -31 to 0 dB. The default value is -11 dB.
Note: This parameter can also be configured per Tel Profile, using
the TelProfile parameter.
Web: DTMF Generation Twist
EMS: DTMF Twist Control
[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 value is 0 dB.
Note: For this parameter to take effect, a device reset is required.
EMS: DTMF Inter Interval
(msec)
[DTMFInterDigitInterval]
Time in msec between generated DTMF digits to PSTN side (if
TxDTMFOption = 1, 2 or 3).
The default value is 100 msec. The valid range is 0 to 32767.