To use the WTI service, you must license and enable Computer Telephony Adjunct Links on
Communication Manager. Because the WTI service uses third-party call control, the
AE Services TSAPI Basic Users license is also required.
Note:
A separate license is not required to use WTI. The WTI service consumes TSAPI and DMCC licenses in AE Services 10.1.2 and later.