Public notice is hereby given that, for the purpose of paragraph 1 of article 98 of the Administrative Procedure Code, the Board of Directors of Autoridade Nacional de Comunicações (ANACOM), in the exercise of powers set out in points f), h), m) and q) of paragraph 1 of article 8 of ANACOM’s Statuteshttps://www.anacom.pt/render.jsp?contentId=1351851, approved by Decree-Law 39/2015, of 16 March, under point d) of paragraph 1 and point c) of paragraph 3 of article 5, point t) of paragraph 1 and point f) of paragraph 2 of article 113, and point a) of paragraph 1 and paragraphs 2, 3 and 4 of article 146, all of the Electronic Communications Lawhttps://www.anacom.pt/render.jsp?contentId=1737530 (ECL), approved by Law No 16/2022, of 16 August, in the exercise of powers conferred in point a) of paragraph 2 of article 9 and in article 10 of ANACOM’s Statutes and in paragraph 1 of article 10 of Law No 16/2022, of 16 August, and in point b) of paragraph 1 of article 26 of the Statutes, decided, on 21 March 2023, decided to launch the procedure for the drafting of a regulation on the identification of the calling line and the sender of a message.
The identification of the calling line and the sender of a message can be defined as the set of information/parameters that is transmitted and used in electronic communications networks and services, making it possible to identify the origin of the communication. This is currently supported by international standards or recommendations associated to signalling protocols (for example, DSS1, ISUP, MAP, SIP).
On 12 November 2008, and in response to various questions raised by companies providing electronic communications services, ANACOM published the Clarification Note on the use of CLI (Calling Line Identification)https://www.anacom.pt/render.jsp?contentId=736459 in call origination”, of which the following is noteworthy:
- “The information contained in the “Calling Party Number” parameter, of ITU-T no 7 signalling (network signalling) and DSS1 (access signalling) should uniquely identify the access of the originator of the call (network termination point or application - e.g. VoIP), with the operator/provider of the number being required to validate the information if provided by the user”;
- “In the case of calls to national emergency services, this information is used to identify and where possible, determine the location of the call origin, while ensuring reliability. The information contained in the CLI should also enable call-back to the location or terminal from which the call originated”; and
- «The numbering ranges which ICP-ANACOM1 considers can currently be presented in the form identified above are as follows:
- 2xxxxxxxx (Telephone service at a fixed location);
- 91xxxxxxx, 92xxxxxxx, 93xxxxxxx, 96xxxxxxx (Mobile telephone service);
- 30xxxxxxx (Nomadic VoIP service);
- 9481xxxxx, 9483xxxxx, 9484xxxxx, 949xxxxxx (Mobile trunking service2)».
In view of the time that has elapsed since the publication of this clarification and of the technological and market developments in the electronic communications sector, ANACOM deems it appropriate to include in the drafting of this regulation the ranges that can be presented.
Under the ECL (i), ANACOM may require, “taking into account bets practice and standards adopted by national, European Union or international organisations applicable to the electronic communications sector, that all undertakings providing Internet access services or publicly available number-based interpersonal communications services make available free of charge to end-users, or (…) to consumers the calling-line identification” (cf. point a) of paragraph 1 of article 146); (ii) for the purposes of (i), “undertakings shall, where technically feasible, make available data and signals facilitating the provision of calling line identification and of the sender of messages across national boundaries” (cf. paragraph 2 of article 146); (iii) where the identification of the calling line or of the sender of a message is provided as an additional facility associated with a number-based interpersonal communication, it shall be valid so as to uniquely identify the originator of the communication or the sender of a message, and shall be transmitted without alteration other than as provided for in international standards (cf. points a) and b) of paragraph 3 of article 146).
At the same time, paragraph 4 of article 146 of the same law lays down that undertakings providing publicly available number-based interpersonal communications services and operators must “take appropriate measures to ensure the integrity of the network and the reliability of the identification presented, in order to prevent the number or facility associated with the identification of the calling line or of the sender of a message from being invalid or otherwise unavailable to the called party, if applicable”.
In this context, ANACOM’s Board of Directors has decided to set a period of 15 working days from the date of this publication for stakeholders to submit contributions and suggestions that they consider should be taken into account in the preparation of the draft regulation.
Written contributions, in Portuguese, may be sent to regulamento.cli@anacom.pt by 14 April 2023, indicating any confidential information, in which case a version with such content removed should be submitted.
ANACOM will assess the contributions and suggestions submitted by stakeholders and take them into account in the preparation of the draft regulation, on which interested parties will be able to comment when it is submitted for public consultation, in accordance with article 10 of ANACOM’s Statutes, through publication on ANACOM’s website (www.anacom.pt) and in Series II of the Official Gazette.
Lisbon, 21 March 2023.
1 Now ANACOM.
2 The mobile trunking service is no longer designated in the National Numbering Plan.
Consult:
- Extension of the deadline for contributions to the procedure for drafting a regulation on the identification of the calling line and the sender of a message https://www.anacom.pt/render.jsp?contentId=1743646
- Approval of the launch of the procedure for the drafting of a regulation on the identification of the calling line and the sender of a message https://www.anacom.pt/render.jsp?contentId=1742303
