Lawful intercept mediation
Lawful Intercept Mediation Platform (LIMA)
The G2K Labs LIMA Lawful Intercept Mediation Platform covers lawful interception, data retention and preservation, network availability, location services, and cell-tower change management — modules that deploy independently and interoperate as one platform. Developed by our counterpart Group 2000; delivered, integrated, and supported across the Americas by G2K Labs from McLean, Virginia.
The modules
Each module stands alone; together they cover a carrier's obligations end to end. All are vendor-agnostic and integrate with existing network equipment — with the intercept core supporting every generation through 5G.
Intercept
The interception core: ADMF warrant administration, MDF2/MDF3 mediation, and delivery to law-enforcement monitoring facilities in standardized handover formats — all services including 5G, VoLTE, and Narrowband-IoT.
Data Retention & Preservation
Network-wide retention of communication metadata for the mandated period, plus per-subject preservation at law-enforcement request — with disclosure workflows and compliant handover to authorized entities.
Network Protect
Controlled network availability for emergencies and events: barring at cell level or by subscriber class, while keeping first responders connected.
Location Services
Target location for authorized agencies — on demand or at scheduled intervals, warrant-gated wherever lawful-intercept rules apply and fully audit-logged.
Maintenance & Permit Management
Change management for cell-site work: permits, safety interlocks, automated cell-site shutdowns with full audit trails, and controls for third-party contractors.
Standards coverage
Compliance work lives and dies by the specs. LIMA implements the interception, retention, and availability standards by number — and Group 2000 is a full and active member of the ETSI Technical Committee for Lawful Interception (TC-LI).
| Domain | Standards implemented |
|---|---|
| Intercept handover | ETSI TS 102 232 · ETSI ES 201 671 · 3GPP TS 33.108 · ATIS/J-STD-025-B (CALEA) · ATIS T1.678 (VoIP) · PacketCable CBIS |
| Warrant administration | ETSI TS 103 120 |
| Retained data & disclosure | ETSI TS 102 657 |
| Network availability | 3GPP TS 22.011 (access control & cell barring) |
Turnkey delivery, not a shipped box
Every LIMA engagement is delivered as a project: site survey and solution matrix, architecture, country-specific configuration, installation, testing, training, and project management — then ongoing operation through our two-tier support model with a business-hours Service Desk and after-hours duty engineer.
Tell us about your network
Send us your environment — we'll come back with a site survey plan and a module-by-module solution matrix.