A network handover method, comprising: receiving, by a user equipment, UE, located in a Long Term Evolution, LTE, network, a circuit switched fallback, CSFB, paging request that is sent from a mobility management entity, MME, for an incoming call, wherein the paging request carries a user number of a calling UE; determining, by the UE, whether the UE supports a handover from the LTE network to a circuit switched, CS, domain of a 2G or 3G network for the CSFB; and when the UE determines that the UE supports the handover, the method further comprises: entering, by the UE, an alerting state, and displaying the user number; accepting, in the LTE network by the UE, the incoming call according to the CSFB paging request; sending, by the UE, a request message to the MME, wherein the request message requests CSFB; receiving, by the UE, a handover command sent from the eNodeB, wherein the handover command instructs to hand over the UE from the LTE network to the CS domain of the 2G or 3G network for the CSFB; and handing over, by the UE, from the LTE network to the CS domain of the 2G or 3G network according to the handover command, generating, by the UE, in the handover, a voice session for the UE according to the handover command; and performing, by the UE, talking by using the voice session generated in the handover. receiving, by a user equipment, UE, located in a Long Term Evolution, LTE, network, a circuit switched fallback, CSFB, paging request that is sent from a mobility management entity, MME, for an incoming call, wherein the paging request carries a user number of a calling UE; determining, by the UE, whether the UE supports a handover from the LTE network to a circuit switched, CS, domain of a 2G or 3G network for the CSFB; and when the UE determines that the UE supports the handover, the method further comprises: entering, by the UE, an alerting state, and displaying the user number; accepting, in the LTE network by the UE, the incoming call according to the CSFB paging request; sending, by the UE, a request message to the MME, wherein the request message requests CSFB; receiving, by the UE, a handover command sent from the eNodeB, wherein the handover command instructs to hand over the UE from the LTE network to the CS domain of the 2G or 3G network for the CSFB; and handing over, by the UE, from the LTE network to the CS domain of the 2G or 3G network according to the handover command, generating, by the UE, in the handover, a voice session for the UE according to the handover command; and performing, by the UE, talking by using the voice session generated in the handover. entering, by the UE, an alerting state, and displaying the user number; accepting, in the LTE network by the UE, the incoming call according to the CSFB paging request; sending, by the UE, a request message to the MME, wherein the request message requests CSFB; receiving, by the UE, a handover command sent from the eNodeB, wherein the handover command instructs to hand over the UE from the LTE network to the CS domain of the 2G or 3G network for the CSFB; and handing over, by the UE, from the LTE network to the CS domain of the 2G or 3G network according to the handover command, generating, by the UE, in the handover, a voice session for the UE according to the handover command; and performing, by the UE, talking by using the voice session generated in the handover.