The lack of interoperability allows gatekeepers that provide number-independent interpersonal communications services to benefit from strong network effects, which contributes to the weakening of contestability. Furthermore, regardless of whether end users ‘multi-home’, gatekeepers often provide number-independent interpersonal communications services as part of their platform ecosystem, and this further exacerbates entry barriers for alternative providers of such services and increases costs for end users to switch. Without prejudice to Directive (EU) 2018/1972 of the European Parliament and of the Council1 and, in particular, the conditions and procedures laid down in Article 61 thereof, gatekeepers should therefore ensure, free of charge and upon request, interoperability with certain basic functionalities of their number-independent interpersonal communications services that they provide to their own end users, to third-party providers of such services.
Directive (EU) 2018/1972 of the European Parliament and of the Council of 11 December 2018 establishing the European Electronic Communications Code (OJ L 321, 17.12.2018, p. 36).