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Lawful Intercept Architecture
This document explains Lawful Intercept (LI) architecture, including Cisco Service Independent
Intercept architecture and PacketCable Lawful Intercept architecture.
Intercept architecture and PacketCable Lawful Intercept architecture.
Lawful Intercept
Lawful Intercept is the process by which law enforcement agencies (LEAs) conduct electronic
surveillance as authorized by judicial or administrative order. Increasingly, legislation is being adopted
and regulations are being enforced that require service providers (SPs) and Internet service providers
(ISPs) to implement their networks to explicitly support authorized electronic surveillance. The types of
SPs or ISPs that are subject to LI mandates vary greatly from country to country. LI compliance in the
United States is specified by the CALEA.
surveillance as authorized by judicial or administrative order. Increasingly, legislation is being adopted
and regulations are being enforced that require service providers (SPs) and Internet service providers
(ISPs) to implement their networks to explicitly support authorized electronic surveillance. The types of
SPs or ISPs that are subject to LI mandates vary greatly from country to country. LI compliance in the
United States is specified by the CALEA.
Cisco supports two architectures for LI: PacketCable and Service Independent Intercept. The LI
components by themselves do not ensure customer compliance with applicable regulations but rather
provide tools that can be used by SPs and ISPs to construct an LI-compliant network.
components by themselves do not ensure customer compliance with applicable regulations but rather
provide tools that can be used by SPs and ISPs to construct an LI-compliant network.
Cisco Service Independent Intercept Architecture
The Cisco Service Independent Intercept Architecture Version 3.0 document
describes implementation
of LI for VoIP networks using the Cisco BTS 10200 Softswitch call agent, version 5.0, in a
non-PacketCable network. Packet Cable Event Message specification version 1.5-I01 is used to deliver
the call identifying information along with version 2.0 of the Cisco Tap MIB for call content. To view
the Cisco Service Independent Intercept Architecture Version 3.0 document, go to the following URL:
non-PacketCable network. Packet Cable Event Message specification version 1.5-I01 is used to deliver
the call identifying information along with version 2.0 of the Cisco Tap MIB for call content. To view
the Cisco Service Independent Intercept Architecture Version 3.0 document, go to the following URL:
The Cisco Service Independent Intercept Architecture Version 2.0 document describes implementation
of LI for VoIP networks using the Cisco BTS 10200 Softswitch call agent, versions 4.4 and 4.5, in a
non-PacketCable network. Although not a PacketCable network, PacketCable Event Messages
Specification version I08 is still used to deliver call identifying information, along with version 1.0 or
version 2.0 of the Cisco Tap MIB for call content. The Cisco Service Independent Intercept Architecture
of LI for VoIP networks using the Cisco BTS 10200 Softswitch call agent, versions 4.4 and 4.5, in a
non-PacketCable network. Although not a PacketCable network, PacketCable Event Messages
Specification version I08 is still used to deliver call identifying information, along with version 1.0 or
version 2.0 of the Cisco Tap MIB for call content. The Cisco Service Independent Intercept Architecture