A method of roaming charging for a circuit switched, CS, fallback, CSFB, Mobile Terminating Roaming Forward, MTRF, call in a home charging device, wherein the method comprises steps of: a. receiving (S201; S301; S401) charging data records from at least one roaming charging device to obtain at least one charging data record, wherein a user equipment roams to a visited public land mobile network, VPLMN, corresponding to the at least one roaming charging device; b. performing (S202; S302; S402) consolidation processing based on the at least one charging data record in combination with local charging data records in the home charging device to obtain a consolidated target charging data record; wherein the step a comprises: - receiving a first charging data record from a first roaming charging device, wherein the user equipment roams to a first VPLMN corresponding to the first roaming charging device, wherein the first charging data comprises at least one of the following items: - number of a first mobile switching center corresponding to the first VPLMN; - CS fallback timestamp; - a first mobile station roaming number, MSRN, corresponding to the user equipment in the first VPLMN; - international mobile subscriber identity, IMSI, of the user equipment; - mobile station international ISDN number, MSISDN, of the user equipment; - calling party number; - call duration - trunking information between a gateway mobile switching center and the first mobile switching center; - receiving a second charging data record from a second roaming charging device, wherein the user equipment roams to a second VPLMN corresponding to the second roaming charging device from the first VPLMN, wherein the second charging data record comprises a second MSRN corresponding to the user equipment in the second VPLMN. a. receiving (S201; S301; S401) charging data records from at least one roaming charging device to obtain at least one charging data record, wherein a user equipment roams to a visited public land mobile network, VPLMN, corresponding to the at least one roaming charging device; b. performing (S202; S302; S402) consolidation processing based on the at least one charging data record in combination with local charging data records in the home charging device to obtain a consolidated target charging data record; - receiving a first charging data record from a first roaming charging device, wherein the user equipment roams to a first VPLMN corresponding to the first roaming charging device, wherein the first charging data comprises at least one of the following items: - number of a first mobile switching center corresponding to the first VPLMN; - CS fallback timestamp; - a first mobile station roaming number, MSRN, corresponding to the user equipment in the first VPLMN; - international mobile subscriber identity, IMSI, of the user equipment; - mobile station international ISDN number, MSISDN, of the user equipment; - calling party number; - call duration - trunking information between a gateway mobile switching center and the first mobile switching center; - receiving a second charging data record from a second roaming charging device, wherein the user equipment roams to a second VPLMN corresponding to the second roaming charging device from the first VPLMN, wherein the second charging data record comprises a second MSRN corresponding to the user equipment in the second VPLMN.