Belqasmi, Fatna, Hanieh Alipour, Malek El Ferjani, and Roch H. Glitho.
" An architecture for QoS-enabled video telephony in a 3GPP 4G evolved packet core environment." <em>Proceedings of the 19th Brazilian Symposium on Multimedia and the Web,
Salvador, 2013</em>. SBC, 2013,  
pp.165-172.