发明授权
US06826167B2 Mobile communication system 失效
移动通信系统

Mobile communication system
摘要:
A communication relay system is connected to a line switched mobile communication system adapted to accommodate therein mobile terminals through radio channels and a packet switched mobile communication system adapted to accommodate therein the mobile terminals through radio channels. When a connection request has been made to a portable terminal, the communication relay system judges whether the portable terminal of interest is connected either to the line switched mobile communication system or to the packet switched mobile communication system.
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