<div>Hi All,</div>
<div>Please someone help me if I am wrong here.</div>
<div>My Understanding is CallManager 4.0 can be upgraded to Callamanger 5.x keeping existing windows 2000 OS but new installation only work on Linux. </div>
<div> </div>
<div>Regards,</div>
<div>Manoj</div>
<div> </div>