Avamprogetto 2a

Technical requirements for the handover interfaces for the execution of telecommunications surveillance

3 Definitions

Communication service provider (CSP)

The CSP is intended as the legal entity providing telecommunication services, including network operators, access providers and service providers. Where appropriate, the

requirements and options in this document concerning the CSP are applicable by analogy to the providers of derived communication services with extended obligations.

Handover interface (HI)

Physical and logical interface across which the information requests and the interception measures are requested from a CSP, and the results of information requests and the results of interception are delivered from a CSP to a law enforcement monitoring facility (processing system of the PTSS).

Historical Data (retroactive interception)

Retained data associated with telecommunication services involving the target identity,

specifically communication associated information or data (including unsuccessful

communication attempts), service associated information or data (e.g. service profile

management by subscriber) and location information.

Interception Related Information (IRI)

Collection of information or data associated with telecommunication services involving the target identity, specifically communication associated information or data (including

unsuccessful communication attempts), service associated information or data (e.g. service profile management by subscriber) and location information.

Content of Communication (CC)

Information exchanged between two or more users of a telecommunication service,

excluding Interception Related Information.

Law Enforcement Monitoring Facility (LEMF)

The processing system (Verarbeitungssystem) which is designated as the transmission destination for the results of information requests and the results of interception relating to a particular interception subject. PTSS operates the LEMF in Switzerland.

Mediation Function (MF)

Mechanism which passes information between a CSP and a Handover Interface, and

information between the Internal Network Interface and the Handover Interface.

Target identity

Technical identity (e.g. the interception's subject directory number), which uniquely identifies a target of interception. One target may have one or several target identities.

Delivery network (DN)

Network infrastructure between the CSP and the LEMF used to transmit the results of information requests and the results of interception. It can support different types of lower communication layers, which should be standard or widely used data communication

protocols.