Methods of network operation are disclosed herein that may reduce congestion on a network. The methods of network operation may include the steps of communicating data between a network and several clients and placing each client of the several clients in VoIP communication with the network. The methods of network operation may include the step of tagging data being communicated by each client with the network with a Quality of Service (QoS) level, and the step of setting the QoS level for each client. The methods of network operation may include the step of reducing congestion of the network by controlling a quantity of data being communicated by each client with the network.