A communication control system controls communication over a Long-Term Evolution (LTE) network and a non-LTE network. The communication control system receives a communication session request transferred from a wireless communication device over the non-LTE network. In response, the communication control system initiates a voice communication session between the wireless communication device and a first communication interface. The communication control system requests an LTE registration notification for the wireless communication device. After the wireless communication device registers with the LTE network, the communication control system receives the LTE registration notification. In response, the communication control system initiates a media communication session over the LTE network between the wireless communication device and a second communication interface.