CESP publishes its audit report of the Observatoire des Usages Internet – Téléphonie et Services Mobiles

The Observatoire des Usages Internet, Téléphonie et Services Mobiles (OUI-TSM) conducted by Médiamétrie is the establishment survey of the French digital audience measurement system. This study is continuously conducted by phone interviews on 11 110 people per year. The audit focuses on the second semester 2019 and the first semester 2020.

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