The data is collected bi-annually. Call minutes and the number of messages have been reported in millions during the time periods of 1 January to 30 June and 1 July to 31 December.
Fixed network call minutes contain the total number of call minutes made by household and corporate customers from the fixed network (including local, national and international calls, calls to service and freephone numbers and national corporate numbers and mobile subscriptions).
The number of minutes of mobile calls made in Finland (subscriptions or prepaid) by household and corporate customers is included in the title 'Mobile call minutes'.
The number of SMS messages includes all text messages sent in Finland.
The number of MMS messages includes all multimedia messages sent in Finland.