Abstract:
A communication device is provided with a processing unit. The processing unit reads a plurality of elementary files from a single subscriber identity card for each of a plurality of subscriber numbers when power-on, and registers to a network for each of the subscriber numbers according to the read elementary files. Also, the processing unit enables a multi-standby mode of wireless communications in response to successful registration to the network for at least two of the subscriber numbers.
Abstract:
A communication device is provided with a processing unit. The processing unit determines whether at least one elementary file in a single subscriber identity card is required to be read out. If so, the processing unit activates one subscriber identity module instance in the subscriber identity card for the elementary file, and reads the elementary file from the subscriber identity card.
Abstract:
A communications apparatus includes a radio transceiver, a memory device and a processor. The radio transceiver transmits or receives wireless radio frequency signals to or from an air interface. The memory device stores a registration database including one or more sets of registration data. Each set of registration data corresponds to an International Mobile Subscriber Identity (IMSI). The processor determines whether performing a PLMN search procedure is required, and when performing a PLMN search procedure is required, the processor retrieves suitable registration data from the registration database according to a currently used IMSI and performs the PLMN search procedure via the radio transceiver based on the retrieved suitable registration data.
Abstract:
A method of selecting a SIM for a location service and a multi-SIM device utilizing the same are disclosed. The method, adopted by a multi-SIM device, includes: acquiring Secure User Plane Location (SUPL) information from a corresponding communications network which each SIM is in connection with; determining which communications network supports a location service based on the SUPL information; and requesting the location service on a SIM that is in connection with the supported communications network.
Abstract:
A method of selecting an active SIM for an emergency service and a multi-SIM device utilizing the same are disclosed. The method, adopted by the multi-SIM device, includes: receiving a request for an emergency call on a first SIM camping on an LTE network; determining whether a second SIM camps on a second communications network which supports an emergency service; and when the second communications network supports the emergency service, performing the emergency call from the second SIM.