VoLTE业务与技术实现方案的研究与分析
周峰,许正锋,罗俊
Study and Analysis of VoLTE Service and Its Implementation
Feng Zhou,Zhengfeng Xu,Jun Luo
电信科学 . 2013, (2): 31 -35 .  DOI: 10.3969/j.issn.1000-0801.2013.02.006