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Voice API for Windows Operating Systems Library Reference — November 2003 499
call progress analysis parameters — DX_CAP
ca_hedge
Hello Edge. The point at which a “connect” will be returned to the application (CPA)
• 1 – Rising Edge (immediately when a connect is detected)
• 2 – Falling Edge (after the end of the salutation)
Length: 1 Default: 2
ca_cnosil
Continuous Non-silence. The maximum length of the first or second period of non-silence
allowed. If exceeded, a “no ringback” is returned. (CPA)
Length: 2. Default: 650 Units: 10 msec
ca_lo1tola
Low 1 Tolerance Above. Percent acceptable positive deviation of short low signal (Basic CPA
only)
Length: 1 Default: 13 Units:%
ca_lo1tolb
Low 1 Tolerance Below. Percent acceptable negative deviation of short low signal (Basic CPA
only)
Length: 1 Default: 13 Units:%
ca_lo2tola
Low 2 Tolerance Above. Percent acceptable positive deviation of long low signal (Basic CPA
only)
Length: 1 Default: 13 Units:%
ca_lo2tolb
Low 2 Tolerance Below. Percent acceptable negative deviation of long low signal (Basic CPA
only)
Length: 1 Default: 13 Units:%
ca_hi1tola
High 1 Tolerance Above. Percent acceptable positive deviation of high signal (Basic CPA
only)
Length: 1 Default: 13 Units:%
ca_hi1tolb
High 1 Tolerance Below. Percent acceptable negative deviation of high signal (Basic CPA
only)
Length: 1 Default: 13 Units:%
ca_lo1bmax
Low 1 Busy Maximum. Maximum interval for short low for busy (Basic CPA only)
Length: 2 Default: 90 Units: 10 msec
ca_lo2bmax
Low 2 Busy Maximum. Maximum interval for long low for busy (Basic CPA only)
Length: 2 Default: 90 Units: 10 msec
ca_hi1bmax
High 1 Busy Maximum. Maximum interval for first high for busy (Basic CPA only)
Length: 2 Default: 90 Units: 10 msec