This report sets out the main results, in aggregated form, referring to the mobile operators of the mobile telephone service which, up to the date of the six monthly compilation of information on roaming, were in operation in Portugal (TMN, Vodafone, Sonaecom, as well as the virtual mobile network operator CTT). These national results are also compared to the overall average results of all European operators, published in the latest report of the ERG (European Regulators Group) with reference to international roaming.
