In a device including a processor and a memory in communication with the processor, the memory includes executable instructions that, when executed by the processor, cause the processor to control the device to perform functions of connecting to a plurality of remote devices, using a network address and a port number that are usable for a plurality of remote devices to access the device; providing a plurality of tokens to a plurality of remote devices, respectively, each token being unique and associated with a different one of the plurality of remote devices; receiving from a first remote device, a first data packet including first media data and a first token associated with the first remote device; and identifying, based on the received first token, the first remote device as a source of the received first data packet.