TTAPILine is component which is based on Windows
Telephone API (TAPI) service. You can use this component for the
following things:

    - transfer data between two computers using modems installed via
      Control Panel | Modems (allows to implement your own half-dupleh
      protocols, see Tl_Test example - 'Send/Receive file');
    - component has special OnNewData event, which let you know that
      new data arrived to communication port;
    - get direct access to your modems under Windows. TAPILine allows
      select modem and open communication port. Right after that you
      can set any special modes, commands and etc. directly for your modem;
    - dial and accept calls;
    - manage your modems via standard dialogs provided by Windows;