发明名称 Communication apparatus
摘要 A radio network transmits network information to a radio terminal when the position of the radio terminal is registered. If the network information has changed when the radio terminal places an outgoing call or receives an incoming call, the radio network transmits network information after the change. The network information includes information identifying a network used to make a connection to another network, and information relating to communication charges. The radio terminal calculates communication charges using the network information.
申请公布号 US6980794(B1) 申请公布日期 2005.12.27
申请号 US19990459037 申请日期 1999.12.10
申请人 CANON KABUSHIKI KAISHA 发明人 HAMADA MASASHI;NAGAMINE KAZUHIDE
分类号 H04M15/00;H04M15/28;H04Q7/22;H04Q7/24;H04Q7/26;H04Q7/30;(IPC1-7):H04M11/00 主分类号 H04M15/00
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