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mobility management entity, mobile telecommunications device, node, methods for user equipment for establishing a voice service and for providing voice service for user equipment, network, and, method for an evolved packet core to establish a voice service. voice.
mobility management entity, mobile telecommunications device, node, methods for user equipment for establishing a voice service and for providing voice service for user equipment, network, and, method for an evolved packet core to establish a voice service. voice.
User Equipment (UE) receiving non-voice packet switched service in an Evolved Universal Mobile Telecommunications System Terrestrial Radio Access Network (eUTRAN) cell undergoes handover to a circuit switched GSM/Edge Radio Access Network (GERAN)/UTRAN cell in response to a requirement for voice service. The voice service is established in the circuit switched domain of a GERAN/UTRAN cell to ensure service continuity regardless of UE mobility that would otherwise not be possible if the voice service was established in the eUTRAN cell. A Gs-like interface between a Mobile Switching Center (MSC) of the CS Core Network and the Mobility Management Entity (MME) of the Evolved Packet Core provides an interface for page requests and location update procedures to be performed.
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