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

Claim 8:
9. A method of preventing call drop in a voice communication network, the method comprising:
receiving, by a server from a first terminal, a first indication that the first terminal is entering a low-signal area, when the server has established a session for a voice call between the first terminal and a second terminal using a first Radio Access Technology (RAT);
preventing the first terminal from connecting to a second RAT by intercepting, by the server, a handover procedure for the first terminal, upon receiving the first indication;
disabling, by the first terminal, one or more media inactivity timers associated with the session based on the first indication;
retaining, by the server, the session, when the first terminal is disconnected from the first RAT Radio Access Technology (RAT) associated with the first terminal;
receiving, by the server, from the first terminal, a second indication indicating that the first terminal has exited the low-signal area;
enabling, by the first terminal, the one or more media inactivity timers associated with the session based on the second indication; and
resuming, by the server, the voice call on the session based on the second indication.