Send the following on WhatsApp
Continue to ChatPresence Control Add-In in Microsoft Dynamics NAV with Lync http://www.pardaan.com/2011/07/01/presence-control-add-in-in-microsoft-dynamics-nav-with-lync/
Presence Control Add-In in Microsoft Dynamics NAV with Lync http://www.pardaan.com/2011/07/01/presence-control-add-in-in-microsoft-dynamics-nav-with-lync/