Patent ID: 11863594
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An electronic device, comprising,
a memory;
at least one antenna module comprising at least one antenna; and
at least one communication processor configured to communicate with a first communication network, a second communication network, and an IP multimedia subsystem (IMS) network, through the at least one antenna module,
wherein the at least one communication processor is configured to:
in response to receiving a first call request, control the electronic device to perform a call by voice communication connection through the second communication network,
based on identifying that the call is disconnected, identify information related to a call disconnected cause,
based on identifying that the identified information related to the call disconnected cause corresponds to a designated condition, start a timer for deferring connection to the first communication network,
in response to receiving a second call request before the timer expires, control the electronic device to perform a voice communication connection through the second communication network currently connected the electronic device, and
based on identifying that a message indicating redirection and/or handover from the second communication network to the first communication network is received before the timer expires, control the electronic device to return to the first communication network.