Subscriber Data Management

Use our industry-leading solution and unequalled experience to boost your subscriber data management process

Subscriber Data Management (SDM) is one of the most critical functions in telecommunication networks. With the increasing number of technologies in networks, imminent arrival of 5G and the evolution to cloud architectures, managing all subscribers’ data and services efficiently has never been so essential to ensure an operator’s business profitability.

Nokia SDM is the solution. It complies with the 3GPP User Data Convergence standard to centralize user data into a single, robust and secure User Data Repository (UDR). The suite of Nokia front-end applications, such as our combined HSS/HLR solution for 2G/3G/4G and IMS, our One-EIR and One-MNP, but also our AAA, PCRF and even third party applications, can then access the data from the shared register. The result is a central register with single point of provisioning, which saves costs and speeds up time to market dramatically when introducing new technologies or new services or when activating new customers – while also offering unparalleled scaling capabilities able to meet the most stringent requirements.

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See how your business can benefit from the Nokia SDM solution

Operational excellence

With geo-redundancy and built-in mechanisms, our SDM solution has field proven superior robustness. It also provides unparalleled scaling capabilities from small to over 250 million subscribers capacity.

Save on costs and reduce time to market

Simplify your network and operations with a cost-effective converged solution with single point of provisioning. Whether your customers have subscribed for fixed, mobile, cable or Wi-Fi services, or your offer includes multiple play services (across fixed voice, mobile voice, broadband and video services), Nokia SDM solution will make your life much easier with a common subscriber data repository for all types of access and services.

Boost revenues with new market opportunities

Nokia SDM solution is open and flexible, supporting multiple front-end network functions and easy integration of third party applications. Operators deploying IoT services or services for vertical markets can also rely on the robustness, scalability and flexibility of our solution to address the wide range of requirements of these services.

Move to cloud SDM and get prepared for 5G

Not only does Nokia Subscriber Data Management offer extremely high availability, reliability and performance, it also prepares the way for future network evolution towards the telco cloud and 5G. With virtualized front-end applications already available and smooth evolution toward Nokia Shared Data Layer (SDL) to fully realize the benefits of the cloud, your investment is preserved and you can upgrade your network at the pace that best suits your needs.

Modernize your network in confidence

Our expert teams have the deep experience in network modernization and swaps it takes to safely and efficiently upgrade your network in record time. Nokia is the market leader in SDM and we have delivered our solution in more than 130 countries. Have a look at our latest press-releases about modernizing our customers’ networks.



Nokia offers the most complete SDM solution and is also the market leader in SDM with more than 280 deployments (including more than 200 LTE networks), serving five billion subscriber licenses worldwide. The Nokia Subscriber Data Management solution has been adopted by the vast majority of tier-1 operators, such as Orange, T-Mobile International, Vodafone, China Mobile, Verizon, Sprint, Bharti Airtel and Reliance Jio.