One-pass GPRS and IMS authentication procedure for UMTS. - Yi-Bing Lin; Ming-Feng Chang; Meng-Ta Hsu; Lin-Yi Wu (IEEE J. Sel. Areas Commun., 2005)

An Integrated Call Agent of the Coveraged VoIP Network. - Hung-Hsin Chang; Meng-Ta Hsu; Ming-Feng Chang; Chien-Chao Tseng (J. Inf. Sci. Eng., 2007)