TY  - BOOK
AU  - Black, Uyless
TI  - Voice Over IP
SN  - 0-13-065204-0
U1  - 004.6 BLA Second
CY  - United States of America
PB  - Prentice Hall 
KW  - Computer Science
KW  - Voice,IP
N1  - Faculty, students and Staff
UR  - https://libgen.is/book/index.php?md5=877CDBF2B3322EC109B809724EA25D88
ER  -