Patent ID: 6826167
Filing Date: 2004-11-30
Classification: H04W

Abstract:
A communication relay system which is connected to a line switched mobile communication system adapted to accommodate therein mobile terminals through radio channels, a packet switched mobile communication system adapted to accommodate therein mobile terminals through radio channels and a public switch adapted to accommodate therein fixed terminals, and which is adapted to relay communication between said line switched mobile communication system and said packet switched mobile communication system and communication between said line switched mobile communication system or said packet switched mobile communication system and said line switched public switch,wherein when a connection request is made from an associated one of said fixed terminals to the associated one of said mobile terminals which is accommodated either in said line switched mobile communication system or in said packet switched mobile communication system, said communication relay system is connected to said line switched mobile communication system to communicate with a computer for managing the position information of the mobile terminals, thereby judging whether the associated one of said mobile terminals as an object of the connection request is accommodated in said line switched mobile communication system or said packet switched mobile communication system to relay a signal which is sent from the associated one of said fixed terminals to the mobile communication system in which the associated one of said mobile terminals as an object of the connection request is accommodated.