Microsoft Corp. on Tuesday launched two new programs that allow people to place calls right from the Outlook e-mail program, but analysts say businesses won’t throw away their reliable office phone systems until the software maker’s tools are just as good.

The new programs build on server and desktop software Microsoft introduced in 2005 that wove both instant messaging and indicators of “presence” — when a user is online, busy or logged off — into other communications programs in the Office suite.