Projet 2a
Consultation 2017/22: Projets d'ordonnances pour la mise en œuvre de la nouvelle loi fédérale sur la surveillance de la correspondance par poste et télécommunication · 194 pages
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Technical requirements for the handover interfaces for the execution of telecommunications surveillance
Clause Selection of ETSI options for Swiss Additional requirements or specifications ETSI TS applications
102 232-5
V3.5.1
4.3 General Requirements
3) Generally, copies of signal The documentation of the VoIP provider information (e.g. SIP messages) are must explain the parameters and/or transferred as IRI data. message combinations used for the various services (e.g. basic call, call forwarding) at the use of examples.
Services that are controlled by end devices (clients) of subscribers must be described – if known – with regard to changes to signalling or RTP streams (e.g. simultaneous RTP streams in the case of conferences).
5) IRI data that is not part of the Module ‘HI2Operations’ described in signal must be transferred as well. ETSI TS 101 671 V3.12.1 Annex D.5 must be used for handing over IRI data. A separate parameter may be used for SIP messages. The module itself should be transmitted in accordance with the requirements of ETSI TS 102 232-1 V3.11.1 Annex A.2
6) No national option is mandated.
5.3 Assigning a value to the CIN
Generally, for new sessions, the CIN If a connection already exists at the time is assigned at the first IRI or CC of activation of an interception measure, information. a copy of IRI and CC data must be If a session already exists at the time captured and provided starting from the of activation of an interception point in time when the first IRI event is measure, the CIN must be generated detected.
at the first IRI or CC message.
5.3.1 Assigning a CIN value to SIP related IRI
The description assumes the use of Despite of the known ETSI issue with the Call ID and the „o” field of the multiple CIN, the generation of a single SDP for generating a single CIN for CIN for the various individual
the entire call. communication sessions is still an objective.
5.5 Interception of Content of Communication
The delivered Content of Communication shall contain the IP header
At the point of handover the VoIP This requirement also applies if the provider must remove any service provider supports peer-to-peer
coding and/or encryption that have communication by providing the key been applied to the data on his part. while the encryption itself is performed This includes any proprietary outside the provider’s network.
encodings.