Linksys SPA-941 - Manual (Page 139)

Linksys SPA-941 Telephone User Guide Set Up Outlook for TAPI 127
8. Depending on the PC’s operating system and security settings, a security
warning window may be displayed as part of the install. Click Run to install
or Cancel to not install TAPI.
9. Click Next in the Welcome dialog box to install the TAPI program.