@BOOK{ Book!D - 90320838,
AUTHOR = " Luan Dang, Cullen Jennings, and David Kelly.",
TITLE = "Practical VoIP using VOCAL /",
LIBRARY= "مرکز و کتابخانه مطالعات اسلامی به زبان‌های اروپایی",
SUBJECT = "Internet telephony.,Téléphonie Internet.,Electrical & Computer Engineering.,Engineering & Applied Sciences.,Internet telephony.,IP.,Open Source,Telecommunications.,Telefonieren",
URL = "/book/90320838/Practical-VoIP-using-VOCAL/"}