Pluggable Terminals
Pluggable terminals allow an application to create terminals during run time. Terminals are normally created and controlled by a telephony service provider/media service provider (TSP/MSP) pair, and this remains the most versatile and stable means of manipulating terminals. However, some applications need to use simple terminals in situations where an appropriate TSP/MSP pair is not available. Only application writers who are thoroughly familiar with TSP/MSP operations should use pluggable terminals.
In TAPI version 3.1, pluggable terminals are added to the TAPI model. Pluggable terminals allow a third party to add a new terminal object that any MSP can use.
See Pluggable Terminal Registration and Writing a Pluggable Terminal for more information.