(a)
Calling-line identification namely, the calling party’s number is presented to the called party prior to the call being established. This facility shall be provided in accordance with relevant law on protection of personal data and privacy, in particular Directive 2002/58/EC. To the extent technically feasible, operators shall provide data and signals to facilitate the offering of calling-line identity and tone dialling across Member State boundaries.
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Source: EUR-Lex (Cellar) · retrieved 2026-10-28 · Text as adopted (Official Journal); later amendments are not incorporated in this text.