TY  - BOOK
AU  - Bill Douskalis.
TI  - Putting VoIP to work: Softswitch network design and testing 
SN  - 130409596
U1  - 621.38212 D741 
PY  - 2002///
CY  -  N.J
PB  - Prentice Hall
KW  - Internet telephony
KW  - Computer networks
KW  - Switching theory
N1  - Includes bibliographical references and index
ER  -