BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS
A general architecture that implements the various feature of the invention will now be described with reference to the drawings. The drawings and the associated descriptions are provided to illustrate embodiments of the invention and not to limit the scope of the invention.
FIG. 1 is a block diagram showing the configuration of an IP terminal gateway system according to a first embodiment of this invention;
FIG. 2 is a diagram showing one example of storage contents of a storage unit for interface attributes corresponding to numbers shown in FIG. 1;
FIG. 3 is a diagram showing one example of storage contents of a table for channel resource necessity levels shown in FIG. 1;
FIG. 4 is a diagram showing one example of storage contents of a table for share group numbers corresponding to channel resource necessity levels shown in FIG. 1;
FIG. 5 is a diagram showing one example of storage contents of a table for a channel resource share group to be acquired shown in FIG. 1;
FIG. 6 is a diagram showing one example of storage contents of a storage unit for managing the number of resources shown in FIG. 1;
FIG. 7 is a flowchart showing a control processing procedure of a call control unit when the MG channel resource is acquired in the first embodiment;
FIG. 8 is a flowchart showing a control processing procedure of the call control unit when the MG channel resource is returned in the first embodiment;
FIG. 9 is a block diagram showing the configuration of an IP terminal gateway system according to a second embodiment of this invention;
FIG. 10 is a diagram showing one example of storage contents of a storage unit for managing the number of resources shown in FIG. 9;
FIG. 11 is a flowchart showing a control processing procedure of a call control unit when an MG channel resource is returned in the second embodiment;
FIG. 12 is a block diagram showing the configuration of an IP terminal gateway system according to a third embodiment of this invention; and
FIG. 13 is a diagram showing one example of storage contents of a table used by a call control unit in the third embodiment.