A system for controlling airplane mode of a user device is configured to transmit a connection request to a telecommunication network for connecting with a target user device over a first communication channel. Upon receiving a call failure response from the telecommunication network the system is configured to transmitting a second communication request to the target user device through a second communication channel, wherein the second communication request comprises a target authentication key. The target user device is configured for generating an authentication response upon authentication of the second communication request based on the target authentication key. Further, the system is configured to transmit an activation signal to the target user device through the secondary communication channel for deactivating the airplane-mode and activate the first communication channel upon receipt of the activation signal.