期刊名称：International Journal of Future Generation Communication and Networking
印刷版ISSN：2233-7857
出版年度：2016
卷号：9
期号：8
页码：375-380
出版社：SERSC
摘要：Mobile service providers allow their customers to use roaming services when they travel to other countries. In the standard mobile call setup procedures, multiple VPMN MSISDNs cannot be provided to the roamers. Also, call setup to the roamer is indirectly routed through the home network of the roamer, which results in the usage of expensive international carrier’s trunks. In this paper, we propose a software framework that provides multiple VPMN MSISDNs in a UMTS. The proposed framework solves the indirect routing problem and can be easily deployed to mobile operators since it does not modify standard telecommunication protocols.
