Summa Networks is the market specialist in Subscriber, Policy and Identity management solutions. Our mission is to guide carriers of all sizes and types in their transition towards 5G, while they still need to operate on 2G, 3G, 4G, 5G NSA networks until ready to upgrade to 5G SA, first as an overlay function in hybrid interworking mode, then as pure 5G standalone. Our trusted SDM solution, including an HLR, HSS for LTE, HSS for IMS, 5G NSA, UDR, UDM, AUSF, PCRF, PCF provided in a single piece of software, has a numerous set of features like AAA for VoLTE and VoWiFi. Our solution is suitable for MNOs, MVNOs, MVNE/As, Private LTE, IoT networks.