Assuming you are talking about Exchange 2010's UM role...
The direct SIP may be an option but it may have some features that do not work 100% using that integration method. Using a Session Manager to go to UM I believe is a supported integration. Using a SIP gateway is definitely the easiest and most widely used method of getting integration to UM.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.