Q:

How do I make telephone links that Microsoft Lync can open?

I am trying to make a .html page that can work with Microsoft Lync. But, i can't seem to get it to work.
I would appreciate detailed description.
Example: 

<a href="tel:123456789">Open a Lync Window the boss man.</a>
<a href="tel:txt:boss@boss.com">chat with the boss man.</a>
<a href="tel:call:boss@boss.com">call with the boss man.</a>

A:

Ensure the "Lync click to call" add-on is enabled in your browser.  With that the add-on enabled the following will work:-
 - <a href="tel:123456789">Open a Lync Window the boss man.</a>
 - <a href="sip:boss@boss.com">IM Chat with boss man.</a>

Notice the "sip:" prefix in the second example.

