发明名称 Open to all prepaid roaming systems and methods
摘要 Some embodiments include a method for providing roaming service for a wireless device of a person that is both a prepaid subscriber of a local network and a subscriber of a home network with which the local network has a roaming agreement. Other embodiments of related systems and methods are also disclosed.
申请公布号 US8472946(B2) 申请公布日期 2013.06.25
申请号 US20080199335 申请日期 2008.08.27
申请人 CHAN SIU BUN;LIANG HONG BIN;YAN XIN YU;ALTOBRIDGE LIMITED 发明人 CHAN SIU BUN;LIANG HONG BIN;YAN XIN YU
分类号 H04W4/00 主分类号 H04W4/00
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