@book{540852,
	author = {Khalid, Saqib and Dr. Imran Rashid},
	title = {framework to Mitigate Security Vulnerability (Denial of Service(DOS) ) of Session Initiation Protocol / Voice over Internal Protocol (SIP/VOIP) /},
	publisher = {MCS - NUST,},
	year = {2017.},
	address = {Islamabad :}
}