Published on 27 February 2026

Technical and administrative regulations

• SR 784.101.112/3 Requirements of the type and form of accounting and finance information of market-dominant providers of telecommunication services

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• SR 784.101.113/1.1 Access to and interconnection of electronic directories

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• SR 784.101.113/1.2 Quality of the Universal Service

  These regulations apply exclusively to the universal service licensee and govern the quality of those telecommunication services which must be provided by it within the framework of the universal service obligation. Other telecommunication service providers, who do indeed offer services which are part of the universal service but who are not obliged to do so by a universal service licence, are not subject to these regulations.

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• SR 784.101.113/1.3 Emergency call requirement

  SR 784.101.113/1.3 Emergency call requirement

• SR 784.101.113/1.4 Interfaces of the telecommunications networks

  The telecommunications market has many suppliers offering products not only based on traditional technologies but also on innovative technologies and applications. National and international measures have been prepared to support the widest possible range of terminals.
  
  Many of these measures have been implemented in Switzerland due to its economic relevance and as far as possible to harmonize Swiss rules with the EU legal framework. One of the goals of these measures is to ensure advance announcement and publication of technical specifications of the interfaces used to offer telecommunications services. These specifications shall be in sufficient detail to permit the design of telecommunications terminal equipment capable of utilizing all services provided through the corresponding interface.
  
  These technical and administrative requirements regulate the details of the Swiss application of above-mentioned measures; they cover the announcement and the publication of the interfaces used to access Swiss public telecommunications networks.
  
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• SR 784.101.113/1.6 Characteristics of the universal service interfaces

  This regulation is addressed exclusively to the universal service licensee and governs the technical specifications of the interfaces that must be complied with at the network termination point. The relevant international specifications form the basis of the technical regulations.

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• SR 784.101.112/1.7 Calling-line identification

  This document sets out the requirements for telecommunications service providers on transmitting the calling line number.

  New requirement in the fourth edition (applies to landline numbers from 1 January 2026 and mobile numbers from 1 July 2026):

  Transit providers must insert an indicator to mark incoming calls from abroad containing a Swiss telephone number. The identification must also give the name of the transit provider that has carried out the identification. If the call cannot be identified on technical grounds, the transit provider must remove the caller number (requirement 2, chapter 5).

  This enables the terminating provider to better recognise calls with spoofed numbers and, in accordance with Article 26a paragraph 6 OTS, to remove the number of the calling line for the line being called or to block the call entirely.

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  Details on the technical implementation can be found in asut’s Swiss TSP Anti-Spoofing Agreement Technical Specification.

  • Swiss Anti Spoofing Technical Specification V 1 2

    PDF4.81 MB14 October 2025

• SR 784.101.113/1.8 Reporting of Network Faults

  These technical and adminstrative regulations apply in principle to all telecommunications service providers. They define what faults in networks and services must be reported to OFCOM. They lay down which telecommunications services are subject to the reporting obligation, as well as the parameters and thresholds that define a notifiable fault. The regulations describe the content and timing of fault reports as well as their addressing.
  
  These technical and administrative regulations enter into force on 01.01.2023.

  Currently available in German, French and Italian only
  SR 784.101.113/1.8 Reporting of Network Faults
  Edition 2: 23.11.2022 / Entry into force: 01.01.2023

  Further information

  Guidelines for the security

  ENISA Report 2021

• RS 784.101.113/1.9 Publication of Information about Telecommunication Quality of Service

  These technical and administrative regulations apply to the following telecommunications services:

  - Internet access via fixed network
  - Internet access via mobile networks

  All telecommunication service providers (TSPs) that meet the following selection criteria must comply with these technical and administrative regulations:

  - Fixed network: TSPs with at least 300,000 connections
  - Mobile network: TSPs with at least one mobile network licence and at least 300,000 connections

  These technical and administrative regulations came into force on 1.1.2021. The dates from which the various requirements regarding measurement and publication apply are set out in Part III of the revised OTS of 18 November 2020, AS 2020 6203

  www.fedlex.admin.ch

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• SR 784.101.113/1.10 Number portability between service providers

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• SR 784.101.113/1.11 The free choice of the provider for national and international connections

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• SR 784.101.113/1.12 Unauthorised manipulation of telecommunications equipment by means of telecommunications transmissions

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• SR 784.101.113/1.13 Security of networks and services operated by mobile phone licensees

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• SR 784.101.113/1.14 Hardening of mobile networks against power supply disruptions

  These technical and administrative regulations apply to all mobile network licence holders. They stipulate that mobile networks must be prepared for power supply disruptions. They regulate which telecommunications services must always be provided and which content must be transmitted as a minimum. They also regulate the geographical and temporal availability of these telecommunications services and content. Finally, they set the implementation deadlines.

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• SR 784.101.113/2.2 E.164 numbering plan and its segmentation

  Current telephone numbering plan. This document constitutes the reference for the allocation of E.164 ranges of numbers to applicants wishing to provide telecommunications services in Switzerland.

  • SR 784.101.113/2.2 Numbering plan and segmentation of the E.164 numbers

    Edition 8: 08.11.2023 / Entry into force: 01.03.2024

    PDF188.10 kB27 February 2024

• SR 784.101.113/2.3 Numbering plan F.69

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• SR 784.101.113/2.4 Numbering plan X.121

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• SR 784.101.113/2.7 Regulation over the administration of communication parameters

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• SR 784.101.113/2.10 Individual number allocation

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• SR 784.101.113/2.12 The short numbers for directory information services

  This document fixes the conditions and technical and administrative requirements relating to the directory information services.

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• RS 784.101.113/2.13 The allocation and administration of second level domain names, which are subordinate to the domain “.ch”

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• RS 784.101.113/2.14 The allocation and administration of second level domain names, which are subordinate to the domain “.swiss”

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• SR 784.101.113/2.15 Use of addressing elements without formal allocation

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