A general term describing the integration of computer and telephone technologies. By joining computer systems with switched telephone services, users can access advanced functions such as automatic incoming call routing, call display, and power dialing. For example, a computer can use computer-telephony integration (CTI) to issue commands to a telephone switch to control call routing of calls.
CTI applications generally fall into one of two categories:
CTI is made possible on Microsoft Windows platforms by operating system application programming interfaces (APIs) such as Microsoft's Telephony Application Programming Interface (TAPI). The range of products and technologies that support CTI continues to evolve. Cross-platform, vendor-neutral standards have not yet been established.