A method for identifying a telephone call, the method comprises: when a first telephone apparatus affiliated with a telephone number receives a telephone call from a telephone number of a telephone calling party, determining whether a second telephone apparatus of an assigned entity, said entity being affiliated with the telephone number of the telephone calling party, is calling the telephone number of the first telephone apparatus, wherein the telephone number of the second telephone apparatus is the telephone number of the telephone calling party; and when the second telephone apparatus is not calling the telephone number of the first telephone apparatus, outputting prompt information for indicating that the telephone call from the telephone calling party is a falsified-number telephone call wherein the determination of whether the second telephone apparatus of the assigned entity, said entity being affiliated with a telephone number of a telephone calling party, is calling the telephone number of the first telephone apparatus comprises: inquiring a preset correspondence relationship between telephone numbers and assigned entities on the assigned entity corresponding to the telephone number of the telephone calling party; obtaining the telephone number of the first telephone apparatus; sending the telephone number of the telephone calling party and the telephone number of the first telephone apparatus to a first server of the assigned entity, wherein the first server is configured to manage operations of all telephone apparatus in the assigned entity, detect, among the managed telephone apparatus, the second telephone apparatus which is under a working state, and detect whether the second telephone apparatus which is under the working state is calling the telephone number of the first telephone apparatus currently; and receiving a detection result returned back by the first server, wherein the detection result is that the second telephone apparatus is calling the telephone number of the first telephone apparatus currently or that the second telephone apparatus is not calling the telephone number of the first telephone apparatus currently. when a first telephone apparatus affiliated with a telephone number receives a telephone call from a telephone number of a telephone calling party, determining whether a second telephone apparatus of an assigned entity, said entity being affiliated with the telephone number of the telephone calling party, is calling the telephone number of the first telephone apparatus, wherein the telephone number of the second telephone apparatus is the telephone number of the telephone calling party; and when the second telephone apparatus is not calling the telephone number of the first telephone apparatus, outputting prompt information for indicating that the telephone call from the telephone calling party is a falsified-number telephone call wherein the determination of whether the second telephone apparatus of the assigned entity, said entity being affiliated with a telephone number of a telephone calling party, is calling the telephone number of the first telephone apparatus comprises: inquiring a preset correspondence relationship between telephone numbers and assigned entities on the assigned entity corresponding to the telephone number of the telephone calling party; obtaining the telephone number of the first telephone apparatus; sending the telephone number of the telephone calling party and the telephone number of the first telephone apparatus to a first server of the assigned entity, wherein the first server is configured to manage operations of all telephone apparatus in the assigned entity, detect, among the managed telephone apparatus, the second telephone apparatus which is under a working state, and detect whether the second telephone apparatus which is under the working state is calling the telephone number of the first telephone apparatus currently; and receiving a detection result returned back by the first server, wherein the detection result is that the second telephone apparatus is calling the telephone number of the first telephone apparatus currently or that the second telephone apparatus is not calling the telephone number of the first telephone apparatus currently. inquiring a preset correspondence relationship between telephone numbers and assigned entities on the assigned entity corresponding to the telephone number of the telephone calling party; obtaining the telephone number of the first telephone apparatus; sending the telephone number of the telephone calling party and the telephone number of the first telephone apparatus to a first server of the assigned entity, wherein the first server is configured to manage operations of all telephone apparatus in the assigned entity, detect, among the managed telephone apparatus, the second telephone apparatus which is under a working state, and detect whether the second telephone apparatus which is under the working state is calling the telephone number of the first telephone apparatus currently; and receiving a detection result returned back by the first server, wherein the detection result is that the second telephone apparatus is calling the telephone number of the first telephone apparatus currently or that the second telephone apparatus is not calling the telephone number of the first telephone apparatus currently.