Communication system, connection management server apparatus, and recording medium on which program is recorded

A recording medium which stores a program which causes a computer to execute processing of managing a dormant function of a communication system comprising

• a plurality of data link activating side apparatuses serving as terminal apparatuses of users who use Internet via a dialup connection, and
• a plurality of data link activated side apparatuses which are connected to the data link activating side apparatuses through a circuit switched network to relay data to be transmitted/received between the data link activating side apparatuses and an Internet Service Provider for dialup connection to the Internet, wherein the program comprises a program which causes the computer to execute:
• a function of systematically managing information of logical link resources to be used to connect the Internet via the Internet Service Provider, such that when one of the data link activating side apparatuses that has previously used one of the logical link resources, but which has subsequently gone into a dormant state, freeing the previously-used logical link resource, newly calls one of the data link activated side apparatuses, providing, by performing a logical link search request, information that represents a free logical link resource and a data link activated side apparatus having the logical link resource to the data link activated side apparatus that is newly called;
• and
• a function of, when the data link activating side apparatus which returns from a dormant state to an active state newly calls the data link activated side apparatus, providing to the data link activated side apparatus that is newly called information that represents a logical link resource that corresponds with the data link activating side apparatus before the data link activating side apparatus was set in the dormant state and represents a data link activated side apparatus having the logical link resource.