This invention is directed to acquisition of a communication path for a mobile communication apparatus in a case of occurrence of communications beyond the capacity of a radio base station due to a communication trouble or the like.A communication relay apparatus comprises: a wireless connection unit that connects with a mobile communication apparatus via a wireless communication path; a wired connection unit that connects with a wired communication path; and an authentication unit that permits, based on a first authentication, the connection of the mobile communication apparatus to the wired communication path and that permits, based on the establishment of a second authentication, the said connection if the first authentication is not established and further if information for permitting the said connection has been registered.