Digital data and voice communications superimposed in a converged network compete for network bandwidth, or the total information throughput that the network can deliver. Data traffic requires significant network bandwidth for short periods of time, while voice traffic demands a steady, relatively constant transmission path. Data traffic can tolerate delays, while voice transmission degrades if delayed. Data networks handle data flow effectively. However, when digitized voice signals are added to the mix, networks must be managed differently to ensure constant, real-time transmission needed by voice.