Bateman, David <br/><br/>
Configuring CallManager and Unity :  a step-by-step guide / 
David Bateman 
 - Indianapolis, IN :  Cisco Press,  2005 
 - xxiv, 550 p. :  ill. ;  24 cm. 
<br/><br/><label>ISBN: </label>9781587051968 1587051966 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Internet telephony