TY  - BOOK
AU  - Goralski, Walter  J.
AU  - Kolon, Matthew C.
TI  - Ip Telephony 
SN  - 0072130822
U1  - 004.62 
PY  - 2000///
CY  - New York : 
PB  - McGraw-Hill, 
KW  - Computer Network Protocols
N1  - NY
UR  - https://eaklibrary.neduet.edu.pk:8443/catalog/bk/books/toc/0-07-213082-2.pdf
ER  -