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CTI = Computer Telephony Iintegration


CTI allows a computer to interact with telephone, e.g. in set up and terminate calls with numbers taken from a directory via a PC application.

There are basically two different approaches supported with CTI:

  • The computer (e.g. a PC located at the same desk as the telephone) directly interacts with the telephone: First Party CTI.
  • The computer (could be also a co-located PC) interacts with the telephone system (e.g. SIP application server), and the latter controls the telephone: Third Party CTI.

See also / Siehe auch