A method in a mobility management entity, MME, for enabling handover of a communication service of a user equipment, UE, between a circuit switched, CS, network and a packet switched, PS, network, the UE being located in the CS network and having a communications service in the CS network, the method comprising: receiving (302, 403, 502, 602, 701) a reverse Single Radio Voice Call Continuity, rSRVCC, handover request message from a Mobile Service Switching Centre, MSC, server, for handover of the user equipment from the CS network to the PS network indicating that an allocation of a resource associated with the communications service in the PS network is needed; sending (305, 405, 509, 608, 704) a handover request message to a base station, in the PS network; receiving (306, 406, 509, 608, 705) from the base station a handover request acknowledge message comprising information about the allocation of the resources in the PS network; sending (307,407, 510, 610, 706) to the MSC server a handover response message, comprising information about the allocation of the resources in the PS network; receiving (311, 413, 514, 614, 709) from the base station a handover notification message comprising a notification that the handover from the CS network to the PS network is setup in the user equipment; receiving (317, 422, 506b, 606b, 713) from a serving gateway, SGW, a create dedicated bearer request message, comprising a request to create a dedicated bearer associated with the communication service in the PS network; sending (318, 423, 506b, 606b, 714) to the UE an activate dedicated bearer request message comprising a request to activate a dedicated bearer associated with the communications service; receiving (319, 424, 506b, 606b, 715) from the UE an activate dedicated bearer response message comprising information about the activated dedicated bearer associated with the communications service; and sending (320,425, 506b, 606b, 716) to the SGW a create dedicated bearer response message comprising information about the created dedicated bearer associated with the communications service, enabling handover of the communications service between the CS network and the PS network. receiving (302, 403, 502, 602, 701) a reverse Single Radio Voice Call Continuity, rSRVCC, handover request message from a Mobile Service Switching Centre, MSC, server, for handover of the user equipment from the CS network to the PS network indicating that an allocation of a resource associated with the communications service in the PS network is needed; sending (305, 405, 509, 608, 704) a handover request message to a base station, in the PS network; receiving (306, 406, 509, 608, 705) from the base station a handover request acknowledge message comprising information about the allocation of the resources in the PS network; sending (307,407, 510, 610, 706) to the MSC server a handover response message, comprising information about the allocation of the resources in the PS network; receiving (311, 413, 514, 614, 709) from the base station a handover notification message comprising a notification that the handover from the CS network to the PS network is setup in the user equipment; receiving (317, 422, 506b, 606b, 713) from a serving gateway, SGW, a create dedicated bearer request message, comprising a request to create a dedicated bearer associated with the communication service in the PS network; sending (318, 423, 506b, 606b, 714) to the UE an activate dedicated bearer request message comprising a request to activate a dedicated bearer associated with the communications service; receiving (319, 424, 506b, 606b, 715) from the UE an activate dedicated bearer response message comprising information about the activated dedicated bearer associated with the communications service; and sending (320,425, 506b, 606b, 716) to the SGW a create dedicated bearer response message comprising information about the created dedicated bearer associated with the communications service, enabling handover of the communications service between the CS network and the PS network.