LIMA Élite

LIMA Élite

LIMA Élite

End-2-End Lawful Interception compliancy and verification

Advancements in communication technology and as a result the increasing complexity in communications systems have fostered the need for advanced LI processes. It is mandatory and increasingly more important for telecom providers to be sure that implemented lawful intercept systems are working according to the local legislation and processes and operate without failures. In most case operators are not aware of potential failures in the entire communication chain or how to detect these failures, potentially resulting in not completed intercepts. As a consequence, these failures results in a lot of frustration and questions from the LEA to the operator and vice versa occur in order to identify the cause, costing significant time of both parties and more important the loss of potential important intercepted data.
For Law Enforcement it is critical that they can trust the data provided by telecom providers, while on the other hand for telecom providers it is essential that they can trust the deployed interception technologies in their networks.
Automated end-to-end Lawful Interception test tooling would help support law enforcement in validating the complete LI chain for all operators and ensures timely detection of non-compliances of telecom providers. Any time without dependencies of the Mobile Network Operator!
For telecom providers end-to-end LI verification tooling facilitates their compliancy with government regulations, and provides essential information to ensure that the lawful interception chain in the network is fully compliant with the local legislation and governmental needs.

LIMA Élite

To support Law Enforcement and Mobile network operators, Group 2000 has created LIMA Élite. With LIMA Élite, the complete paths from target interception in the network via the Lawful Interception Mediation systems at the operators to the Law Enforcement Monitoring Facility (LEMF) are automatically and continuously being tested for each network operator and technology (2G, 3G and 4G). LIMA Élite is operator, network & technology independent and supports the validation of voice calls, SMS and mobile data transfer interceptions, both on metadata (IRI) and content (CC). For Law Enforcement, LIMA Élite can integrate with any LEMF.
With LIMA Elite both the operator and the LEA are in full control to measure the end-to-end communication chain and be sure that the interception infrastructure is compliant.

Our solution

LIMA Élite works independently and automatically generates calls, SMS messages and data sessions. The frequency with which this test data is generated is configurable. It will automatically cycle through the available connections, testing all operators and networks in sequence. The SIMs used for generating test calls are being intercepted by the operators. This can be achieved through the normal process of providing warrants for these test numbers. As a consequence all traffic generated by these test numbers is intercepted and delivered to the Monitoring Center. By forwarding the intercepted IRI and CC data on the Monitoring Center to LIMA Élite, the application can verify the correctness of the generated metadata and their contents. In case deviations are detected between the data received and expected, the tool will immediately alert the user, so that corrective measures can be taken. In an operator environment, LIMA Élite integrates with the deployed mediation system(s) and will simulate a LEMF. A LIMA Élite solution consists of a LIMA Élite Backend and a LIMA Élite Target Simulator. A LIMA Élite Target Simulator can handle up to 12 mobile network operators e.g. 12 operators each with a 2G, 3G and 4G network.

User Interface

LIMA Élite is equipped with an intuitive and user friendly web-based interface giving the user precise control of the operation of the LIMA Élite solution.

End-to-end solution provider

As an end-to-end solution provider Group 2000 enables and implement LIMA Élite solutions as a turnkey project, including installation, testing, training and project management services.


Key Features
  • Network & technology independent- Works with 2G, 3G, 4G networks of all NE vendors
  • LEMF independent – Integrates with any LEMF System
  • LI Environment independent – Integrates with any LI mediation system
  • Support validation of all interception types – Voice calls, SMS and mobile data transfers interceptions
  • Supports validation of Metadata and Content interception – HI2 and HI3 streams


Technical Specifications

LIMA Élite Target Simulator

  • Supports networks (2G, 3G & 4G) of up to 12 operators
  • Supported bands are FDD LTE: B1/B3/B5/B7/B8/B20, UMTS: B5/B8/B1 (850/900/2100MHz), GSM: 850/900/1800/1900MHz

LIMA Élite Backend

  • Operating system: CentOS 7.x or Red Hat 7.x
  • User friendly web-based GUI for configuration purposes
  • Comprehensive logging and auditing
  • Alerting via e-mail, SNMP, Nagios
  • Supports virtual and bare metal deployments


Product solution video LIMA Élite


More information

For more information about our LIMA Élite solution, please visit our LIMA Élite website.

Solution Sheet

Download here our LIMA Élite Solution Sheet.