LI Solutions for Mobile Network Operators

With over 25 years of experience in the telecommunications arena, and thanks to close cooperation with leading network vendors, Utimaco provides the most comprehensive lawful interception solution for mobile networks today. Utimaco LIMS is used for realtime monitoring in any kind of wireless networks, including 2G (GSM, CDMA, GPRS), 3G (UMTS), 4G (LTE, Advanced LTE), and for other wireless access technologies, such as WLAN and WiMAX. Utimaco LIMS has been integrated and tested with mobile networks of all leading vendors. All our solutions follow international standards, such as 3GPP TS 33.107 and TS 33.108.

Mobile Data Interception

LI for mobile data is typically implemented in the core network of the operator. In an LTE network, for example, Utimaco LIMS directly interfaces with MME nodes for monitoring control plane date (IRI) and SGW/PGW elements for user plane data (CC). In case the internal interception functions are not available or not accessible in a network, LIMS Access Points can be used to intercept data passively, in the core or radio access networks.

Voice and Video Interception

LI for mobile voice and other multimedia services can be deployed in the IMS (IP Multimedia Subsystem) or VoLTE (Voice over LTE) core. LIMS interacts with the serving network elements to intercept target related communication. All intercepted calls and messages are mediated by LIMS and delivered to the Law Enforcement Agency over secured handover interfaces.

5G Lawful Interception

The next generation of mobile technologies, 5G, is beginning to take shape. With release 15, 3GPP have completed the first full set of 5G standards and more and more network operators announce trials and rollout plans for commercial 5G deployments.

Utimaco works closely with leading network vendors and MNOs and is prepared for 5G LI. Our state-of-the-art 5G LI solutions smoothly integrate with standalone and non-standalone 5G networks and are ready to process and mediate broadband multimedia traffic with tens of gigabit’s per second.

Our new Techpaper “Lawful Interception in 5G Mobile Wireless Networks” gives an overview about the coming wireless technologies and explains the challenges with regards to lawful interception. This paper is available to Utimaco partners and customers, who can download the paper here.

Lawful Interception for VoLTE Roaming (S8HR)

Mobile network operators all over the world are upgrading their networks to support a home routed (HR) roaming model for voice calls. The new roaming architecture avoids complex and costly IMS interconnect equipment and replaces traditional voice switches and gateways with local break out. All calls of roaming users in a visited network (inbound roamers) are routed straight to the home network. The home network has full control over call routing, billing and value-added services based on its IP multimedia subsystem.

Utimaco provides two alternative solutions which are compliant with standardization according to 3GPP TS 33.107 and following the recommendations in GSMA PRD IR.65. Utimaco supports the scalable and transparent LI solution which monitors all VoLTE calls on S8 interfaces (LI S8HR) passively and according to GSMA IR.65. Furthermore Utimaco provides support of the BBIFF functionality (Bearer Binding Intercept and Forward Function) and provides the standardized LI Mirror IMS State Function (LMISF).

Further information can be found in our datasheet here.

Lawful Interception for Mission Critical Push to Talk (MCPTT) Networks

Mission Critical Networks are deployed nationwide and across regions to enable public safety and government agencies, power utilities and rail companies to modernize their respective networks with future-proof investments. 3GPP LTE and 5G technologies deliver mission and business-critical mobile broadband solutions to mobile network operators and partners, enabling them to offer reliable, high performance and secure communications.
MCPTT over LTE exceeds current Land Mobile Radio (LMR) Systems and these solutions represent the next generation of mission-critical mobile networks, designed to complement or replace existing national or regional land mobile radio systems, providing a comprehensive voice, data and video services. Furthermore laws of individual nations define a need to intercept targeted telecommunications traffic in communication systems. Utimaco supports Lawful Interception requirements in MCPTT solutions according to 3GPP LTE and 5G technologies.


Monitoring the Internet of Things (IOT)

In the early days, mobile networks have been designed for connecting people. This, however, is changing with the inception of machine-to-machine communication and the Internet of Things. LTE-M and NB-IOT are the emerging technologies that network operators worldwide are embracing to enable cellular IOT applications with long range, low bandwidth and low power consumption.

Both technologies make use of available 4G/5G infrastructure and use SIM cards or eSIMs for device authentication and accounting. The number of connected devices is expected to become much higher than today’s subscriber numbers. For LI solutions which may be needed to track individual devices for law enforcement purposes, this means a potentially very high number of messages that need to be processed, mediated and delivered to the requesting authority.

Our LI solution for cellular IOT has been deployed in several operator core networks already. In these cases, the Utimaco LIMS interfaces with virtualized instances of EPC nodes dedicated for IOT services.

Lawful Interception in NFV and SDN

Network Function Virtualization (NFV) and Software Defined Networks (SDN) are two new buzzwords which are currently stirring up the networking community. These new technologies are increasingly replacing proprietary hardware with software-controlled systems.

What started in enterprise networks and data centers is now gradually being implemented in telecom operator networks with the objectives to reduce equipment and operational costs, power consumption and time-to-market for new services and functionality. NFV can be seen as a response to cloud-service providers who have been offering competitive communications services implemented in software on standard off-the-shelf servers.

The Utimaco FAQ paper offers help in understanding the main technical concepts of NFV and SDN and their impact on LI and DR.

Take a glance at our new FAQs, which you can request here.