In particular embodiments, a broadband receiver of a wireless communications device may poll a broadband communications channel for configuration data. Once the configuration data has been received, the channel may be established, and connection information may be transmitted to a base station. The connection information may be an identifier for a user of a social-networking system. Based on the identifier, the device may be able to establish a narrowband communications channel with the base station. Using the identifier, the base station may be able to begin retrieving social-networking information for the user while establishing a communications channel using the narrowband transceiver. Once the narrowband communications channel has been established, the wireless communications device may be able to receive the social-networking information over that channel and provide social-networking functionality.