| http://www.w3.org/ns/prov#value | - In a first conventional method, the PBX Direct Inward Dialing Connection System disclosed in Japanese Patent Laid-Open No. 3-123295, a PBX exchange capable of performing PBX direct inward dialing connection includes a means for receiving an additionally dialed PBX extension number which is output from an originating telephone set to designate a telephone set other than the telephone set which is
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