Panasonic KX-TVM50 Programming Manual page 146

2.6 Hardware (H/W) Settings
Value Range
0–9.0 dB, Units 0.1 dB
DTMF Detection Guard Time
Specifies the minimum length of each DTMF signal. Signals shorter than this setting will not be
recognised as DTMF signals; signals longer than this setting will be recognised as DTMF signals.
Value Range
40 ms–200 ms, Units 20 ms
DTMF Detection Interdigit Pause
Specifies the minimum length (in milliseconds) of a dial tone needed before the VPS recognises it as
a dial tone.
Value Range
40 ms–200 ms, Units 20 ms
Use First Tone for Ringback Tone Detection
Specifies whether to use the first tone for ringback tone detection. If the ringback tone does not start
from the beginning, "Disable" should be selected, otherwise, Off-hook detection will be detected by
mistake.
Value Range
Disable, Enable
Dial Tone Detection Time
Specifies the length of time to recognise Dial Tone detection. Dial Tone detection longer than the
specified time is recognised as Dial Tone.
Value Range
500 ms–3000 ms, Units 10 ms
Busy/Reorder Threshold Time
Specifies the length of threshold time to recognise Busy Tone or Reorder Tone.
If "None" is selected, specifies the length of threshold to distinguish Busy Tone from Reorder Tone. If
"None" is selected, the VPS detects all of threshold as Busy Tone.
Value Range
None, 100 ms–1000 ms, Units 50 ms
146 Programming Guide