Vorlage 3a

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

6.5.2.1 ETSI TS 133 108 V13.4.0 requirements and options for the circuit switched domain

Clause Selection of ETSI options for Additional requirements

ETSI TS Switzerland

133 108

V13.4.0

4.3 Functional requirements

Options “IRI and CC” and “only IRI”

option must be supported. Option

“only CC” does not need to be

implemented.

4.4 Manual/Electronic handover interface 1 (HI1)

An electronic handover interface from See section 4

the LEMF to the obligated party’s

technical infrastructure for direct

administration of interception

measures without the involvement of

the obligated party is not

implemented in Switzerland.

Events regarding the management of

an interception (e.g. activation and

deactivation) and error

communication must be delivered.

4.5.1 Data transmission protocol

FTP is used for IRI data. See section 6.3.8

The FTP connection must be closed

immediately after data transmission.

Chapter 5: Circuit-switched domain

5.1.2.1 Network Identifier (NID)

The NID is composed of 5 digits: See section 6.3.2.1

NWO/AP/SvP identifier (Operator

identifier).

PTSS provides the Operator

identifier.

5.2.2.1 Control information for HI2

The timestamp must include official

local time and related DST indication

or UTC time

5.3.1 Delivery of Content of Communication

For relating CC data to other H- CC data must be A-law coded in Interfaces the subaddress service will compliance to ITU-T G.711 (11/88), i.e. be used as specified in ETSI TS 133 in case of different coding in the original 108 V13.4.0 Annex J.2 instead of the channel (e.g. GSM) the mediation user-to-user signalling. function must ensure conversion to A-For SMS and UUS Services, CC will law coding.

be transferred as IRI.

The provider must remove encryption

algorithm applied by the CSP

internally in the network at the

handover interface.