The Unified MPLS for Mobile Transport (UMMT) System is a comprehensive Unified RAN Backhaul solution designed to concurrently support multiple generations (2G/3G/4G) of mobile services on a single converged network, with pseudowire emulation (PWE) for 2G GSM and 3G UMTS/ATM transport, L2VPNs for 3G UMTS/IP, and L3VPNs for 3G UMTS/IP and 4G LTE transport. It supports essential features like network synchronization (physical layer and packet based), H-QoS, OAM, performance management, and fast convergence. This Design and Implementation Guide provides detailed information about Cisco's UMMT 1.0 system architecture, components, service models, and implementation details.