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< Back to overview page: "BEREC Consultation Platform"

Draft BEREC Guidelines detailing Quality of Service Parameters

BEREC Public Consultation on draft BEREC Guidelines Detailing Quality of Service Parameters

Starting: 08 Oct Ending

17 days left (ends 05 Dec)

Go to discussion and give your opinion.


During its 40th plenary meeting (3-4 October 2019, Crete) the Board of Regulators approved the draft BEREC Guidelines Detailing Quality of Service Parameters for public consultation.

In accordance with Article 104 of the European Electronic Communications Code  NRAs shall take utmost account of these Guidelines when specifying quality of service parameters to be measured, the applicable measurement methods and the content, form and manner of the information to be published.  By 21 June 2020 BEREC shall adopt the above mentioned Guidelines.

The public consultation is open from Thursday, 10 October 2019 , 14:00 to Thursday, 5 December 2019, 17:00 CET.

Please go to the Discussion and give your opinion.

The consultation document is available for download - please see below.



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<< Previous paragraphs


According to Article 2(35) of the EECC total conversation service means a multimedia real time conversation service that provides bidirectional symmetric real time transfer of motion video, real time text and voice between users in two or more locations.


NRAs should note that other transparency measures concerning equivalent access for persons with disabilities are set out in Articles 102(1)[24] and 103(1) of the EECC in particular the competent authority in coordination, where relevant, with the national regulatory authority can oblige service providers to publish details of products and services, including any functions, practices, policies and procedures and alterations in the operation of the service, specifically designed for end-users with disabilities, in accordance with European Union law harmonising accessibility requirements for products and services.


NRAs could accompany the QoS parameters listed in Table 1 and Table 2 by appropriate QoS parameters concerning equivalent access for persons with disabilities choosing among those listed in Table 3, bearing in mind that all QoS indicators set out in the Guidelines should, in particular, those related to IAS, address the specific needs of end-users with disabilities. The QoS parameters to address the specific needs of end-users with disabilities listed in Table 3 are therefore considered additional to the QoS parameters in Tables 1 and 2.


Table 3 – QoS Parameters for end-users with disabilities



QoS Parameters


Measurement method

Voice communication

Audio bandwidth for speech


ETSI EN 301549 v2.1.2 (clause 6.1)

Where ICT provides two-way voice communication, in order to provide good audio quality, that ICT shall be able to encode and decode two-way voice communication with a frequency range with an upper limit of at least 7 000 Hz.

ETSI EN 301549 v2.1.2 (clause C.6.1)


Real-Time Text (RTT)

Distinguishable display


ETSI EN 301549 v2.1.2

Where ICT has RTT send and receive capabilities, displayed sent text shall be visually differentiated from and separated from received text.

ETSI EN 301549 v2.1.2 (clause C.6.2.2.)

Real-Time Text

Programmatically determinable send and receive direction

ETSI EN 301549 v2.1.2 (clause 6.)

Where ICT has RTT send and receive capabilities, the send/receive direction of transmitted text shall be programmatically determinable, unless the RTT has closed functionality.

ETSI EN 301549 v2.1.2 (clause C.6.2.2.)

Real-Time Text



ETSI EN 301549 v2.1.2 (clause 6.2.3)

Where ICT with RTT functionality interoperates with other ICT with RTT functionality they shall support at least one of the four RTT interoperability mechanisms described in clause 6.2.3.

ETSI EN 301549 v2.1.2 (clause C.6.2.3.)

Real-Time Text

RTT Responsiveness

ETSI EN 301549 v2.1.2 (clause 6.2.4)

Where ICT utilises RTT input, that RTT input shall be transmitted to the ICT network supporting RTT within 1 second of the input entry.

ETSI EN 301549 v2.1.2 (clause C.6.2.4.)

Video communication



ETSI EN 301549 v2.1.2 (clause 6.5.2)

Where ICT that provides two-way voice communication includes real-time video functionality, the ICT a) shall support at least QCIF[25] resolution; b) should preferably support at least CIF[26] resolution.

ETSI EN 301549 v2.1.2 (clause C.6.5.2.)

Video communication

Frame Rate


ETSI EN 301549 v2.1.2 (clause 6.5.3)

Where ICT that provides two-way voice communication includes real-time video functionality, the ICT: a) shall support a frame rate of at least 12 frames per second (FPS); b) should preferably support a frame rate of at least 20 frames per second (FPS) with or without sign language in the video stream.

ETSI EN 301549 v2.1.2 (clause C.6.5.3)

Video communication

Synchronization between audio and video

ETSI EN 301549 v2.1.2 (clause 6.5.4)

Where ICT that provides two-way voice communication includes real-time video functionality, the ICT should ensure a maximum time difference of 100 ms between the speech and video presented to the user.

ETSI EN 301549 v2.1.2 (clause C.6.5.4)

Consultation Question 2


According to Article 104 of the EECC information required from providers on the quality of their services and on the measures taken to ensure equivalence in access for end-users with disabilities should be comparable, reliable, user-friendly and up-to- date. Do you believe the parameters and measurement methods in Table 3 are suitable for this purpose? If not, please explain why and the possible changes that could be made to improve the information.

You agreeYou disagree

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NRAs should note that the publication requirements set in accordance to Article 104(1) are in addition to the transparency measures provided in Articles 102 and 103 of the EECC and the transparency obligations set in Article 4(1) of Regulation (EU) 2015/2120.


According to Recital 271 of the EECC NRAs should be able to require publication of information described in Article 104(1) of the EECC where it is demonstrated that such information is not effectively available to the public.


Detailed guidelines for the transparency measures for ensuring open internet access can also be found in BEREC Guidelines on the Implementation by National Regulators of European Net Neutrality Rules,[27], which are currently being updated.[28]


According to Article 104(1) of the EECC, the information on QoS required by NRAs should be comprehensive, comparable, reliable, user-friendly and up-to-date.


The requirement that information is “comprehensive” and “user-friendly” means that it should be complete/statistically representative as well as understood by members of the intended audience. NRAs should look to ensure that service providers adhere to the following practices in order to ensure that information is user friendly:


  • promote the use of relevant standards;


  • preferably using clear and plain language, in as simple a manner as possible, avoiding complex sentence and language structures. The information should be concrete and definitive;


  • it should not be phrased in abstract or ambivalent terms;


  • avoid unduly technical terminology; and


  • it should not include too detailed information.


Information is “comparable” if the same relevant information is presented, by different providers or by the same providers for different offers, for comparison in such a way that it can show differences and similarities. Information should be comparable at least between different offers, and between different service providers.


The “reliable” element means that information should be correct and cannot be misleading for end-users. Information shall comply with standards and measurement methodology indicated by NRAs, preferably using certified mechanisms if such mechanisms were introduced in a given Member State.