GWP1600/2120 User Manual
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OpenVox Communication Co. ,LTD.
Website: www.openvox.cn
3.2 DTMF
You can do some DTMF Detection Settings if you choose
“
MODULE –> DTMF
”.
Figure 3-10 DTMF
Detection Settings
Notice:
If you don’t have special need, you don’t have to modify these settings. You can just
choose “Default”.
Table 3-3 Description of DTMF Detection Settings
Options
Definition
DTMF Normal
Twist and Reverse
Twist
It is the difference in power between the row and column
energies. Normal Twist is where the Column energy is greater
than the Row energy. Reverse Twist is where the Row energy is
greater.
DTMF Relative
Peak Row
The value is the smaller and the detection is easier. If you lost
some numbers, you can try to put the value down. The
adjustment range is 0.02 at a time.
DTMF Relative
Peak Col
The value is smaller and the detection is easier. If you lost some
numbers, you can try to put the value down. The adjustment
range is 0.1 at a time.
DTMF Hits Begin
Sampling matching value. You can choose 2 or 3.
DTMF Misses End The time interval between the two digits you input. Adjust the
speed of input. The smaller value represents the shorter
intervals.
