CPC H04W 8/02 (2013.01) [H04W 88/06 (2013.01)] | 20 Claims |
1. An operating method of an electronic device, the operating method comprising:
determining initiation of a voice call on a first Subscriber Identity Module (SIM) which is registered with a first network with a first radio access technology (RAT), while availing first data services through the first SIM, wherein the initiation of a voice call leads to a fallback of the first SIM from the first RAT, wherein a Default Data Subscription/Service (DDS) is set to the first SIM;
registering with the first network through a second SIM which is different from the first SIM, in response to the initiation of the voice call on the first SIM and determining the second SIM is registered with a second network with a second RAT; and
availing the first data services from the second SIM that is registered with the first network, while engaging in the voice call on the first SIM.
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