A control apparatus comprising: a communication means for performing a paging process using extended idle-mode Discontinuous Reception, eDRX; a calculation means for calculating a first timing for paging using a first temporary identifier allocated to a communication terminal and a second timing for paging using a second temporary identifier allocated to the communication terminal and different from the first temporary identifier and determining which timing precedes the other timing by comparing the first timing and the second timing in a case where the first temporary identifier and the second temporary identifier are held by the control apparatus, wherein the communication means performs a paging process using the first temporary identifier corresponding to the first timing for initial paging when the first timing precedes the second timing, the first temporary identifier and the second temporary identifier each are a System Architecture Evolution, SAE, Temporary Mobile Subscriber Identity, S-TMSI, containing a Mobility Management Entity, MME, Temporary Mobile Subscriber Identity, M-TMSI, and the M-TMSIs contained in the S-TMSIs of the temporary identifiers are different from each other; and a control means for starting a first timer when the paging process using the first temporary identifier is performed, wherein the first timer is stopped when the control apparatus receives a response from the communication terminal before a predetermined period expires, and the communication means performs a paging process using the second temporary identifier during an operation of the first timer. a communication means for performing a paging process using extended idle-mode Discontinuous Reception, eDRX; a calculation means for calculating a first timing for paging using a first temporary identifier allocated to a communication terminal and a second timing for paging using a second temporary identifier allocated to the communication terminal and different from the first temporary identifier and determining which timing precedes the other timing by comparing the first timing and the second timing in a case where the first temporary identifier and the second temporary identifier are held by the control apparatus, wherein the communication means performs a paging process using the first temporary identifier corresponding to the first timing for initial paging when the first timing precedes the second timing, the first temporary identifier and the second temporary identifier each are a System Architecture Evolution, SAE, Temporary Mobile Subscriber Identity, S-TMSI, containing a Mobility Management Entity, MME, Temporary Mobile Subscriber Identity, M-TMSI, and the M-TMSIs contained in the S-TMSIs of the temporary identifiers are different from each other; and a control means for starting a first timer when the paging process using the first temporary identifier is performed, wherein the first timer is stopped when the control apparatus receives a response from the communication terminal before a predetermined period expires, and the communication means performs a paging process using the second temporary identifier during an operation of the first timer. <EOS>