A voice call request for a voice call involving the mobile device is received in a wireless network while the mobile device is engaged in a connected data communication service via the wireless network. The service utilizes a radio traffic channel between the mobile device and the wireless network and a data session for communication of data. In response to the receiving of the voice call request, the wireless network causes the radio traffic channel for the service to be torn down without terminating the data session. The wireless network also causes a voice call involving the mobile device to be established and maintained over a new radio traffic channel via the wireless network while the data session for the service is maintained. Subsequently, the wireless network identifies an indication that the voice call involving the mobile device has ended and, in response, resumes the communication of the data in the data session over a radio traffic channel.