Fixed-line Access

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Originally, access to the public telecommunication networks over the local loop (subscriber line) was by analogue technology over twisted pair copper wires to support voice and low rate data (e.g. fax). Thanks to technological developments, those twisted pairs can now be used to carry digital signals (e.g. Integrated Services Digital Network, ISDN) or used for voiceband plus digital data as in the variants of Digital Subscriber Line (xDSL).

Other technologies also offer the customer a telecommunications 'pipe' to and from the home. These include:

Broadband multimedia service over CATV (Cable Access Television)
Broadband over Power Line transmission (PLT)
Broadband over coaxial cable and optical fibre.

ETSI has recently merged two committees to form a technical committee for Access, Terminals, Transmission and Multiplexing (ATTM). This committee is responsible for the standards for fixed line access.

The access technologies include narrow band (Integrated Services Digital Network, ISDN, and Public Switched Telephone Service, PSTN) and Broadband over Cable Access Television (CATV). TC ATTM also develops the standards for Digital Subscriber Line (DSL) filters.

Technical committee PLT (Power Line Transmission) deals with standards for broadband access over power lines.

ETSI's TISPAN committee is responsible for the numbering and addressing aspects of gaining access to telecommunication networks.

The following is a list of recently published and frequently downloaded standards. Please use the ETSI Work Programme to find further related standards.

Standard No.	Standard title
TS 102 080	Integrated Services Digital Network (ISDN) basic rate access; Digital transmission system on metallic local lines
ES 203 021 parts 1-3	Harmonized basic attachment requirements for Terminals for connection to analogue interfaces of the Telephone Networks; Update of the technical contents of TBR 021, EN 301 437, TBR 015, TBR 017;
ES 201 970	Public Switched Telephone Network (PSTN); Harmonized specification of physical and electrical characteristics at a 2-wire analogue presented Network Termination Point (NTP)
ES 200 778 parts 1-5	Analogue access to the Public Switched Telephone Network (PSTN); Protocol over the local loop for display and related services; Terminal equipment requirements
EN 300 659 parts 1-3	Analogue access to the Public Switched Telephone Network (PSTN); Subscriber line protocol over the local loop for display (and related) services
ES 201 912	Short Message Service (SMS) for PSTN/ISDN; Short Message Communication between a fixed network Short Message Terminal Equipment and a Short Message Service Centre
TS 101 952-1	Access network xDSL splitters for European deployment; Part 1: Generic specification of xDSL over POTS splitters
TS 101 952-2	Access network xDSL transmission filters; Part 2: VDSL splitters for European deployment;
TR 101 830-1	Access networks; Spectral management on metallic access networks; Part 1: Definitions and signal library Part 1: Definitions and signal library
TS 101 271	Access transmission system on metallic pairs; Very High Speed digital subscriber line system (VDSL2); [ITU-T Recommendation G.993.2 modified] European technical requirements for VDSL2 (Second generation DMT-based VDSL)
TS 102 639-1	Third Generation Transmission Systems for Interactive Cable Television Services - IP Cable Modems; Part 1: General
TS 102 639-2	Third Generation Transmission Systems for Interactive Cable Television Services - IP Cable Modems; Part 2: Physical Layer [ITU-T Recommendation J.222.1 (07/2007), modified]
TS 102 639-3	Third Generation Transmission Systems for Interactive Cable Television Services - IP Cable Modems; Part 3: Downstream Interface [ITU-T Recommendation J.210 (11/2006), modified]
TS 102 639-4	Access and Terminals, Transmission and Multiplexing (ATTM); Third Generation Transmission Systems for Interactive Cable Television Services - IP Cable Modems; Part 4: MAC and Upper Layer Protocols [ITU-T Recommendation J.222.2 (07/2007), modified]
TS 102 639-5	Third Generation Transmission Systems for Interactive Cable Television Services - IP Cable Modems; Part 5: Security Services [ITU-T Recommendation J.222.3 (07/2007), modified]