To showcase the potential of network energy saving (NES) in open radio access networks (O-RAN), Rohde & Schwarz and VIAVI Solutions have collaborated with Analog Devices. At Mobile World Congress 2025 in Barcelona, visitors can experience the joint O-RU test solution of the two T&M companies as it verifies the low power consumption of Analog Devices' new Titan O-RU platform according to ETSI specifications. These network energy saving tests help to significantly reduce energy consumption and OPEX in O-RAN integrations.