I have to use the Microsoft Lync client at work on a work-supplied laptop, but when I'm working from home I tend to use my own Linux server to connect up and of course, that excludes me from using Lync.
I did some fishing around on the internet and was delighted to discover that there was a Linux client available to download from http://fisil.com/ - this link still works but there is no trace of the Wync client. Recently, I've had the need to use Wync under Linux but it didn't seem to be available anywhere. I tried general Google searches and also searched with the aptitude tool from the shell i.e. sudo aptitude search wync and came up with nothing.
I then hit on the idea of using the Wayback Machine (Internet Archive) and to my delight, I was able to download the 64-bit .deb file - this is now hosted on my server and you can download it from the following link:
Wync - Lync for Linux (64-bit deb file)