A real number and a published number are allocated to a call origination telephone terminal 100. The real number is a telephone number used in the case of directly connecting to the telephone terminal, and the published number is a number published for a third party as a telephone number of the telephone terminal. The telephone relaying apparatus 200 stores the real number and the published number in correlation with each other for each of a plurality of telephone terminals. When receiving a first call in which the real number of the call origination telephone terminal 100 is a calling number, the telephone relaying apparatus 200 reads out the published number corresponding to the real number of the call origination telephone terminal 100. The telephone relaying apparatus 200 makes a second call in which the published number of the call destination telephone terminal 300 is a calling number, and performs a relaying process between the call origination telephone terminal 100 and the call destination telephone terminal 300.