Keycode Receivers & Senders
|
Name |
Value range |
Description |
|---|---|---|
|
AntiTapDetection |
Do not change |
|
|
DetectionDelay (see note 2) |
18/30/40 ms |
Specifies the minimum on time of DTMF signals to be detected as valid digits. |
|
DtmfRemovalLevel |
0..2 |
Not Used |
|
EarlyDetection |
Not Used |
|
|
FrequencyDeviation (see note 2) |
15..25 (1.5-2.5%) |
Frequency deviation of DTMF tone pair |
|
MaxAntiTapToneDropoutTime |
Do not change |
|
|
MaxDropoutTime |
0..8191 ms |
Max tone dropout to qualify as one digit |
|
MaxToneDropoutTime |
Do not change |
|
|
MinAntiTapToneOffTime |
Do not change |
|
|
MinAntiTapToneOnTime |
Do not change |
|
|
MinLevelThreshold (see note 2) |
140-480 (-14 to -48dBmo) |
Min threshold level for DTMF frequency components |
|
MinToneOffTime |
0..8191 ms |
Min tone off length to qualify as digit |
|
MinToneOnTime |
0..8191 ms |
Min tone length to qualify as DTMF digit |
|
NegativeTwist (see note) |
10..160 (1-16dB) |
Negative Twist |
|
PacketSize |
5,10,20,30,40,50, 60 ms |
Changes channel latency for DTMF receiver at the expense of channel density (30 ms is default). |
|
PositiveTwist (see note 2) |
10..160 (1-16dB) |
Positive Twist |
|
SnrThreshold (see note 2) |
-30..60 (-3 to 6dB) |
Signal to Noise ratio. 16 bit value. Negative values are specified as sign bit + value, e.g. 32768 + 30 = -3.0 dB. |
|
ZeroInterDigitDetection |
Do not change |
- To meet the most industry standards, default settings should be used.
- These parameters are also applicable to DTMF receivers in VoIP channels.
|
N/A |
N/A |
N/A |
|---|---|---|
|
Name |
Value range |
Description |