<br clear="all">Experts,<br><br>Can you please elaborate the difference between these two term. Right now I am going through the Design Guide for Unity release 5.0. Right now we already have Microsoft Exchange 2003 and CallManager (4.2).<br>
<br>Also do we need to upgrade CCM to a higher release.<br><br>-- <br>Thanks,<br>Syed Khalid Ali<br><br>