In some implementations, the server 404 may transmit a confirmation request (CR) 424 to the client device 406. The CR 424 may be a pop-up notification, a notification in a chat message, or a short messaging service (SMS) notification requesting a confirmation of a transfer of the RTCS 410 to the communication channel between the client device 406 and the second mobile device 408. The CR 424 may prompt a user of the client device 406 to provide an input. The input may be a touch input, a keyboard input, a mouse input, a voice input, or a gesture input. In response to the input, the client device 406 transmits a response 426 to the server 404. The response 426 is based on the input and indicates whether the transfer is confirmed or denied. If the transfer is confirmed, the server 404 transfers the RTCS 410 to the communication channel between the client device 406 and the second mobile device 408.