CPC H04W 4/90 (2018.02) [H04W 4/029 (2018.02); H04W 8/20 (2013.01); H04W 84/042 (2013.01)] | 20 Claims |
1. An emergency call method, further comprising:
obtaining public land mobile network (PLMN) information from a subscriber identification module (SIM) card of a user terminal, wherein the PLMN information comprises a home PLMN (HPLMN) and an equivalent HPLMN (EHPLMN);
receiving an emergency call operation of a user;
receiving, in response to the emergency call operation of the user, a PLMN list that is broadcast by an access network device, wherein the access network device is in a multi-operator core network (MOCN), and the PLMN list comprises a plurality of PLMNs that share the access network device;
determining an optimal PLMN from the plurality of PLMNs by comparing the PLMN information and the PLMN list; and
making an emergency call through a core network of the optimal PLMN.
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