Title	SIP-Based QoS Management Framework for IMS Multimedia Services
Author	Umber Iqbal, Younas Javed, Saad Rehman, Asia Khanum
Citation	Vol. 10  No. 5  pp. 181-188
Keywords	SIP, QOS, IMS, Multimedia Service

Title	IMS Based Network Stored Address Book using the XCAP Protocol
Author	Aakanksha Aggarwal, H. Anthony Chan
Citation	Vol. 10  No. 9  pp. 119-126
Keywords	IMS, NGN, SIP, XCAP

Title	Scenarios for the Transition to NGN
Author	Negin Maleki, Hamed Shahbazi Fard* and Mahdi Movassagh
Citation	Vol. 17  No. 4  pp. 115-122
Keywords	Component, Migration Strategy, Migration Scenario, PSTN, IP, IMS, NGN.

Title	Blockchain for Controlling Hajj and Umrah Permits
Author	Meshal Alotaibi, Mohammad Alsaigh and Mohammad Yamin
Citation	Vol. 19  No. 4  pp. 69-78
Keywords	Blockchain, Hajj, Umrah, Smart Contract, Consensus, IoT, Pilgrims.