A system that performs rate control for real-time communications (“RTC”) establishes a tunnel by a tunneling server with a tunneling client of a user equipment (“UE”). The system receives a request from the UE to enable the rate control for an inner socket of the tunnel, and sends a response back to the UE to indicate that the rate control is enabled for the inner socket. The system then monitors a transmission rate at the inner socket of the tunnel, and drops frames when the monitored transmission rate is greater than a predetermined transmission rate.