Patent ID: 11943669
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 9:
10. A method of preventing call drop in a voice communication network, the method comprising:
detecting, by a first terminal comprising a first Subscriber Identity Module (SIM) and a second SIM, wherein the first terminal is established in a first call with a second terminal using the first SIM, a second call on the second SIM from a third terminal, when a session is established for the first call between the first terminal and the second terminal;
disabling, by the first terminal and the second terminal, respective one or more media inactivity timers associated with the first call based on the detection for retaining the session;
storing, by the first terminal and the second terminal, one or more network parameters associated with the first call when one of, the session is retained and when the session is released;
detecting, by the first terminal and the second terminal, termination of the second call on the second SIM; and
when the session is retained, resuming, by the first terminal and the second terminal, the first call on the session based on the stored network parameters upon enabling the respective one or more media inactivity timers based on the detection;
when the session is released, re-initiating, by the first terminal and the second terminal the first call on a new session based on the stored network parameters based on the detection.