System information

APPENDIX J. TELEVANTAGE CONFIGURATION SETTINGS J-19
Example: Defining a disconnect tone
The keys in the next table are DWORD values that define the default disconnect tone for
TeleVantage. The tone has the following characteristics:
Q A Dual Tone Frequency with a first frequency of 450Hz – 510 Hz (that is, 480 +/- 30)
and a second frequency of 580ms – 660ms (that is, 620 +/- 40)
Q On and off times are both between 200ms – 300ms (that is, 250ms +/- 50ms)
Q Cadence must repeat 2 times
Q Cadence begins on the leading edge of the tone
cadenceon_dev
Allowable deviation for “on” time (in 10ms units)
cadenceoff
Length of time for which the cadence is “off” (in 10ms units)
cadenceoff_dev
Allowable deviation for “off” time (in 10ms units)
leadingedge
1
= tone detection on leading edge, 0 = on trailing edge
Custom Tone Keys
Key DWORD Description
freq1 480
First frequency (in Hz) for the tone
freq1dev 30
Allowable deviation for first frequency (in Hz)
freq2 620
Second frequency (in Hz) for the tone
freq2dev 40
Allowable deviation for second frequency (in Hz)
cadence 1
1
= cadenced tone, 0 = noncadenced tone
minrep 2
Number of repetitions for the cadence
dualtone 1
1
= dualtone, 0 = single tone
cadenceon 25
Time for which cadence is “on” (in 10ms units)
cadenceon_dev 5
Allowable deviation for “on” time (in 10ms units)
cadenceoff 25
Time for which cadence is “off” (in 10ms units)
cadenceoff_dev 5
Allowable deviation for “off” time (in 10ms units)
leadingedge 1
Tone detection: 1 = leading edge, 0 = trailing edge
Custom Tone Keys
Key Description