Abstract: The disclosure relates to a method for supporting rich communication service (RCS) auto-configuration failure. The method includes: monitoring a plurality of messages exchanged between a user device and a configuration server, detecting a first message received from the configuration server is a failure message, extracting a timer from header of the failure message and a rate limiting factor of service provider from one or more databases, setting an alarm in the user device for sending a second message to the configuration server, storing configuration information including the timer and the rate limiting factor into a SIM memory, retrieving the stored configuration information from the SIM memory with reference to a requesting mode, and configuring the user device to a third message to the configuration server based on the retrieved configuration information.

Abstract: A method for managing a connection by a server is provided. The method may comprise monitoring a state of a Transmission Control Protocol (TCP) connection for a communication session of a receiver device by Internet Protocol Multimedia Subsystem (IMS) stack, based on a plurality of signal parameters and connection context information for a defined period in absence of packet communication; based on the state of the TCP connection for the communication session being suspended, closing the TCP connection; and based on the state of the TCP connection for the communication session being registered, selecting one or more Session Initiation Protocol (SIP) timers for resetting and routing the communication session of the receiver device.