Lawful Interception

What is the need for Lawful Interception?

Lawful Interception is a unified solution for network operators and service providers which is fully compliant with international standards and has a proven track record. It is a complete solution capable of handling both circuit switch and packet switch traffic from both legacies and the latest telecom technologies including PSTN, 2G, 3G, 4G, 5G, NGN, IMS, IPLC, and others.

The core purpose of Lawful Interception is to intercept the traffic and convert intercepted traffic into a format suitable for delivery to National Authorities or Law Enforcement Agencies, over a secure network. It can also retain the intercepted traffic for future use by the LEAs. LI platform along with Lawful Interception intercepts the IPLC traffic using the probes that capture the data and intercept the required information and transmit it towards the LEA through LI Mediator & Management platform situated at a central monitoring location. The mediator server carries out the reconstruction of entire TCP traffic for various protocols including HTTP, Telnet, FTP, POP3, SMTP, NNTP, and many other unencrypted protocols. SSL decoding is also supported wherein private keys are available.

Lawful Interception solution is designed to change and adapts as per the latest network up-gradation and technologies. It protects investments through its modular setup, accommodating network expansion as well as network changes. It can also integrate with existing Lawful Interception solutions incorporating it into a centrally managed unified solution.

Need of Lawful Interception for IPLC in India In India, DoT mandates every service provider to implement a Lawful Interception System to facilitate the interception of all kinds of interfaces over which Leased Line services are provided by the operator based on the criteria defined by Law Enforcement Agencies and CMS. Also, as per the Unified Access Service License (UASL) granted to the IPLC provider, it is mandatory for the operator to fulfill the following UASL requirements for lawful interception: The Licensee shall take IPLC from the licensed videos. The interception and monitoring of Resellers’ circuits shall take place at the Gateway of the ILDO from whom the IPLC has been taken by the Licensee.

The provisioning for Lawful Interception & Monitoring of the Resellers’ IPLC shall be done by the ILD Operator and the concerned ILDO shall be responsible for Lawful Interception and Monitoring of the traffic passing through the IPLC. The Resellers shall extend all cooperation in respect of interception and monitoring of its IPLC and shall be responsible for the interception results. The Licensee shall be responsible to interact, correspond and liaise with the licensor and security agencies regarding the security monitoring of the traffic.

The Licensee shall, before providing an IPLC to the customer, get the details of services/equipment to be connected on both ends of the IPLC, including the type of terminals, data rate, actual use of circuit, protocols/interface to be used, etc. The Resellers shall permit only such type of service/protocol on the IPLC for which the concerned ILDO has the capability of interception and monitoring.

Without prejudice to the liability of ILDO, the Licensee shall pass on any direct request placed by security agencies on him for interception of the traffic on their IPLC to the concerned ILDOs within two hours for necessary actions.

The Licensee shall ensure that necessary provision (hardware/ software) is available in their equipment for doing the Lawful interception and monitoring from a centralized location.

As per the provision of Section 5 of Indian Telegraph Act, the Licensee will provide necessary facilities to the designated authorities of Central/State Government as conveyed by the Licensor from time to time for interception of the messages passing through its network.

The Licensee shall provide at its own cost technical facilities for accessing any port of the switching equipment at the HUB for interception of the messages by the designated authorities at a location to be determined by the Licensor.

CMS Integration iNterceptor supports CMS integration and is fully CDOT CMS Integration compliant with the following features: Transfer of packet data content to CMS platform in real-time as per CMS system requirements Electronic Provisioning for target activation, target deactivation, and target extension Electronic Provisioning for target activation, target deactivation, and target extension For interception of any subscriber, LEA will get a warrant from the competent authority and send it to TERM. The TERM nodal officer will send the provisioning request for the target to the iNterceptor’s Management System through the CMS GUI screen. The Management System will update the same on all the iNteliProbes. This system will do the provisioning automatically, removing manual intervention, as asked in the latest notification from DoT. Benefits of Interceptor High-Performance Mediation iNterceptor is capable of handling networks with very high throughput requirements. It can handle multiple 100 Gbps links and is capable of selecting required traffic from these links.

Integrity Check Mechanism The integrity check mechanism periodically checks the network elements and if required corrects the erroneous states. It will query the network element for the placed intercepts and add missing intercepts, remove invalid intercepts, etc. This mechanism is used to detect and correct both network flaws as well as tampering with the interception solution. In case of correction of an erroneous state, this will be notified to the operator.

Extensive Interface Adapters iNterceptor has a vast range of Input/Output adapters which makes it compatible with all the available access technologies and network equipment of all the major equipment providers. By allowing multiple Input and Output Adapters to be combined in one system, iNterceptor can be configured to support any situation, even mixing circuit-switched and packet-switched technologies in the same system. If required, customer-specific Input or Output adapters can be developed.

Because of the true modularity of the iNterceptor, these specifically developed adapters can

generally be offered at the same price as a standard license. Due to its design philosophy, iNterceptor can support hybrid networks with equipment from different vendors on the same server. When networks grow or change, iNterceptor can easily be extended to cater for the growth in traffic volumes or new types of network elements.

Compliance Unified solution for all interception requirements of a service provider which is compliant to international standards like 3GPP, ETSI, ATSI, ANSI, CALEA and others. It also complies with local LI regulations of many countries across the world.

Proven Field Record Lawful Interception system is a proven and mature solution that continues to benefit from functional enhancement and feature evolution. It has been deployed in varied networks, enabling TSPs / Law Enforcement Agencies to benefit.