基于IMS进行固网承接的若干关键问题研究
赵飞,梁朝霞
Research of Terminal Access and Service Provision of PSTN in IMS
Fei Zhao,Zhaoxia Liang
电信科学 . 2010, (12): 100 -105 .  DOI: 10.3969/j.issn.1000-0801.2010.12.026