Firing up MiCollab chat session from a link in a web page

[VinceWhirlwind]

The following Microsoft Technet article describes how you can fire up a Lync chat session from an embedded link:
https://technet.microsoft.com/en-us/library/gg398376(v=ocs.15).aspx
 
example:
im:<sip:user1@host><sip:user2@host>

I'm wondering if anybody has found the best equivalent to do this with the MiCollab client?