Sharma, Dasrat. <br/><br/>
VoIP setup design & its configuration using PBX / 
Dasrat  Sharma ; Noushad Shaikh and Farhan Mahar. 
 - MUET, Jamshoro :  Computer System Engineering, IICT,  2003. 
 - xi, 85p. :  ill. ; 30 cm. 
<br/><br/>Includes References. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer System Engineering.
<br/><br/><label>Dewey Class. No.: </label> / SHA