With the basic client you can’t do many things. You need client (not CAL) such as Skype for Business client or MS outlook to connect the server application from the end user side.
In Microsoft world client access licenses are required for most of the applications/product that are based on server/client architecture. It enables PSTN in/out, emergency calling, and other enterprise-grade phone features.įirst you need to distinct between client license and CALs( client access license). Plus CALs: Plus CALs are additional CALs and required only for Enterprise Voice features, and Standard CALs are prerequisite for Plus CALs.It provides scheduled and impromptu meetings with audio and video calling, desktop and application sharing, and dial-in conferencing on mobile phones, tablets, PC and Mac. Enterprise CALs: Enterprise CALs provide additional features to Standard CALs and Standard CALs are prerequisite for Enterprise CALs.