TY  - BOOK
AU  - Shepard, Steven
TI  - Voice Over IP Course 
SN  - 0072262419
U1  - 004.62 
PY  - 2005///
CY  - New York : 
PB  - McGraw-Hill, 
KW  - Internet Telephony
KW  - TCP/IP Computer Network Protocol
N1  - NY
UR  - https://eaklibrary.neduet.edu.pk:8443/catalog/bk/books/toc/0-07-226241-9.pdf
ER  -