Synway Information Engineering Co., Ltd
SMG-C Series Analog Gateway User Manual (Version 1.7.1)
Page 39
the right of the interface. The value range of the tone energy herein above is -18~11, calculated by
dB, with the default value of 0.
3.5.5 DTMF
Figure 3-33 DTMF Detector Configuration Interface
See Figure 3-33 for the DTMF configuration, including two parts: DTMF Detector and DTMF
Generator. The table below explains the items shown in the above figure.
Item
Description
Minimum Energy
Threshold
Set the minimum energy threshold of the DTMF signal. Range of value: -96~-1. The
default value is -45.
Maximum Threshold
of Signal Twist
Set the maximum threshold of the DTMF signal twist. Range of value: 0~12. The
default value is 3.
Input Signal Gain
Set the input gain of the DTMF signal. Range of value: -24
～
24, calculated by dB.
The default value is 0.
Voice Path Delay
Once this feature is enabled, the DTMF in the voice data will be clamped. Range of
value: 0
～
20, calculated by ms. The default value is 20.
Minimum Duration
at ON
Set the minimum duration at ON for the DTMF signal. Range of value: 10
～
60,
calculated by ms. The default value is 28.
DTMF Display via
Channels Status
Once this feature is enabled, the received/sent DTMF will be displayed upon you
putting the mouse on the icon of channel status. The default value is disabled.