Here is a list of all documented struct and union fields with links to the struct/union documentation for each field:

• amplitude : _MSDtmfGenCustomTone
• duration : _MSDtmfGenCustomTone
• frequency : _MSDtmfGenCustomTone , _MSToneDetectorDef
• min_amplitude : _MSToneDetectorDef
• min_duration : _MSToneDetectorDef
• tone_start_time : _MSToneDetectorEvent