Jason Perlow at ZDNet on Microsoft's integrated VOIP/Video Conferencing/Group Presenting/Instant Messaging solution.
"The software is fully integrated into Exchange, so whenever you set up a call, you click a button for "New Lync Meeting" and it sets up a virtual conference line as well as the appointment blocked out in your Outlook calendar along with the meeting invites to the folks that need to join. When it comes time to call in, you just click on "Join Lync Meeting" in the meeting entry and everyone gets connected to the conference. Once they have joined, people can: turn on their webcams; upload PowerPoint presentations to show the group or other document types for folks to download; and present the output of applications on their desktop. They can also instant message the group with URLs and anything else that is needed."
and when you are out of the office
"Have you ever had to multitask between your calendar, look up the number, jump back into the dialer, and hope you remembered it correctly? Not fun. This is totally eliminated with Lync. Whether I am using my Windows Phone, my iPhone or an Android phone, all I need to do is click on a calendar entry for the call, and the mobile version of the Lync client contacts the remote server, and calls me on the phone, directly inserting me into the conference."
Photo Credit - Wikipedia