hbTapi Components is a collection of easy to use Delphi VCL components allowing object-based access to Microsoft's Telephony API (TAPI).

Just a few features of hbTapi Components:

+ Support multiple phones, lines, calls per line, and multiple addresses
+ Enumerate installed line and phone devices
+ Discover device hardware capabilities
+ Complete call control
+ Make Call - Dial full or partial number
+ Call progress messages and call state
+ Translate telephone number - Using dialing properties
+ Display CallerID information - Name, number
+ Detect ringing, busy, connect, disconnect, and much more...
+ Use Hold, Unhold, Park, Transfer, Redirect and more...
+ Use Conference Calling, Three Way Calls and more...
+ Detect/Generate DTMF tones - local and remote party key presses
+ Wave Playback and Recording
+ Enumerate Location Names
+ Get/set Current Location, Country Code, ...
+ Control speakerphones,handsets and headsets
+ Control display, buttons and lamps
+ Create "Assisted Telephony" applications
+ Send/Receive binary data