Provisioning of voice service in a multimedia mobile network

Receiving non-voice packet switched services in an evolved universal mobile telecommunications system terrestrial radio access network (of the eUTRAN) cell among the user equipment (the UE), in response to a voice service request to perform a circuit switched GSM / EDGE Radio Access Network ( GERAN / UTRAN) cell switching. Based on GERAN / UTRAN cell in the circuit switched domain voice service, in order to ensure continuity of service, regardless of the mobile user equipment, if the voice service establishment in which eUTRAN cell will not be able to achieve continuity of service. Gs interface has characteristics CS core network a mobile switching center (MSC) of the Evolved Packet Core a mobility management entity (MME) provides an interface between the paging requests and for performing a location update process.