Lawful Intercept · LIMS · Mediation Device · DoT Compliance · CMS Integration

Lawful Intercept Infrastructure — DoT Compliant for Indian Operators

Every licensed telecom operator and ISP in India must maintain lawful intercept capability. Ogma designs, deploys, and integrates lawful intercept management systems (LIMS), mediation devices, and handover interfaces for mobile, fixed, broadband, and VoIP networks — ensuring DoT licence compliance with complete operational security.

DoT Licence Compliance ETSI LI Standards 2G / 3G / 4G / 5G Coverage Strict NDA & Compartmentalisation
DoT
Indian Telecom Licence Compliance
ETSI LI
Handover Interface Standards
2G–5G
Multi-Generation Network Coverage
CMS
Central Monitoring System Integration

Why Ogma for Lawful Intercept?

Ogma works with India's telecom operators and ISPs to deploy and maintain lawful intercept infrastructure with the operational security, discretion, and technical precision that LI environments demand. We are vendor-neutral — selecting LIMS platforms (Utimaco, SS8, Verint, Rohde & Schwarz DIGILOG) based on your network architecture and regulatory requirements.

  • LI compliance gap assessment against DoT licence conditions
  • LIMS platform selection, procurement, and deployment
  • Mediation device integration for legacy network elements
  • ETSI LI handover interface configuration and testing
  • CMS connectivity and delivery interface validation
  • LI operational security — access control, audit logging, NDA
DoT Compliance
Unified Licence LI obligations
Multi-Network
Mobile, fixed, broadband, VoIP
Operational Security
Compartmentalised access
CMS Integration
MHA Central Monitoring System

Lawful Intercept Service Scope

End-to-end LI infrastructure — from compliance gap assessment through LIMS deployment, network integration, and ongoing operational support.

LI Compliance Gap Assessment

Map your current LI capability against DoT licence conditions and ETSI LI standards. Identify which network elements lack native LI support, which handover interfaces are missing, and what the CMS delivery path looks like. Delivers a prioritised remediation roadmap.

LIMS Platform Deployment

Deploy and configure a Lawful Intercept Management System — Utimaco LIG, SS8 PRISM, Verint Engagement Intelligence, or Rohde & Schwarz DIGILOG — based on your network scale, technology mix, and operational team capabilities.

Mediation Device Integration

For network elements without native ETSI LI interfaces — legacy switches, third-party VoIP platforms, custom ISP stacks — Ogma deploys mediation devices that intercept, reformat, and forward traffic in standard LI handover format to the LIMS.

Mobile Core LI (2G–5G)

LI provisioning on MSC, MGW, IMS, GGSN/PGW, and 5G UPF. Configuration of IRI (Intercept Related Information) and CC (Content of Communication) delivery. Testing against DoT-specified test targets before go-live.

Broadband & ISP LI

LI on BRAS/BNG for fixed broadband intercept. Deep packet inspection configuration for internet access content capture. ISP LI for leased line and colocation customers as required by Unified Licence conditions.

LI Operational Security

Access control and audit logging for all LI system access. Warrant management process design. Compartmentalised network segment for LI infrastructure. Quarterly security review of LI access logs and active intercepts.

Frequently Asked Questions

Lawful intercept (LI) is a legally mandated capability that allows authorised law enforcement and intelligence agencies to access communication content and metadata with appropriate judicial or executive authorisation. In India, all licensed telecom operators (Unified Licence), ISPs, internet exchanges, and VoIP providers are required to maintain LI capability under the Indian Telegraph Act (1885), IT Act (2000), and DoT licensing conditions. Non-compliance risks licence revocation.

A LIMS is the central management platform that receives warrants from law enforcement agencies (LEA), provisions intercept targets on the network, collects intercepted content (CC) and intercept-related information (IRI/metadata), and delivers it to the LEA via secure handover interfaces. The LIMS sits between the LEA and the network — it manages the warrant lifecycle, maintains audit logs, and ensures that only authorised intercepts are active.

India's DoT has issued technical requirements for LI aligned with ETSI Technical Specification TS 101 671 (handover interface for circuit-switched networks), ETSI TS 102 232 (IP networks), and 3GPP TS 33.107/33.108 (mobile networks — 2G through 5G). The intercept must be delivered to the government's Central Monitoring System (CMS) operated under the Ministry of Home Affairs.

LI must be provisioned across: mobile core (MSC, MGW, IMS for voice and SMS), packet core (GGSN/PGW/UPF for data intercept), fixed-line switches and softswitch platforms, ISP internet access routers (BRAS/BNG), VoIP and OTT communication platforms, and internet exchanges. Ogma works with your network team to assess LI coverage gaps and deploy mediation devices where native LI is not supported.

Many modern network elements from Ericsson, Nokia, Huawei, Cisco, and Juniper have native LI capabilities (CALEA/ETSI interfaces) that require activation and configuration. Where native LI is not supported — legacy switches, third-party VoIP platforms, custom applications — an external mediation device is deployed to intercept and convert traffic to the standard LI handover format. Ogma assesses your network inventory and determines the appropriate approach for each element.

LI infrastructure is among the most sensitive systems in any operator network. Ogma follows strict compartmentalisation: LI network segments are isolated from OSS/BSS systems, access is limited to named personnel with documented authorisation, all configuration work is performed under NDA, and no configuration details are stored in shared documentation systems. We also advise on operational security practices for your internal LI management team.