: Network convergence is the combination of voice, video and data over an IP network. Moving to a converged network can help reduce an organization’s total cost of ownership for its network, and help reduce the ongoing costs required to maintain and upgrade the network. By utilizing Cisco CallManager, a traditional PBX can be eliminated and replaced with IP telephony over a converged network. Additional benefits of VoIP include the reduced cost of long distance bills, improved customer service, and enhanced call centers. Converged networks and applications that take advantage of IP empower organizations to increase revenues and decrease costs.