The present invention is directed to a node for transmitting data over a network. The node includes a first ascertaining element configured to ascertain the need to transmit one or more data streams from the node to a second node over the network, the one or more data streams including time-based media that is generated either locally or remotely on the network. The node also includes a second ascertaining element configured to ascertain a timeliness preference for reviewing the one or more data streams by one or more recipients respectively. The ascertained timeliness preference for each one of the data streams is either (a) time-sensitive where at least one recipient of the one data stream has indicated an intent to review the one data stream in a near real-time mode as received by the recipient over the network while the time-based media of the one data stream is being generated or (b) less-than time-sensitive.