FIELD: wireless communication equipment.
SUBSTANCE: invention relates to mobile communication. When performing a handover method with the continuity of a single voice radio call, the MME records whether a bearer deletion request message sent by the gateway device is received. If the MME determines that the bearer deletion request message is received, MME does not send a message with the unicast channel deletion instruction to the gateway device and does not delete the resource of the local bearer of the voice services.
EFFECT: technical result is to eliminate the conflict in the SRVCC process due to the fact that after the MME performs the deletion of the unidirectional voice service delivery channel on the IMS side, MME does not perform the unidirectional delivery of voice services on the EPS side.
6 cl, 21 dwg
