art_16__para_3__text_1
National regulatory authorities shall, in preparation for the review provided for in Article 19, monitor developments in wholesale and retail charges for the provision to roaming customers of voice and data communications services, including SMS and MMS, including in the outermost regions referred to in Article 349 of the Treaty on the Functioning of the European Union. National regulatory authorities shall also be alert to the particular case of inadvertent roaming in the border regions of neighbouring Member States and monitor whether traffic-steering techniques are used to the disadvantage of customers.
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Source: EUR-Lex (Cellar) · retrieved 2026-11-01 · Text as adopted (Official Journal); later amendments are not incorporated in this text.