The following information is collected concerning the consumer behaviour of households for telecommunications services:

Mobile telephony:

- Form of the contractual commitment,
- Total monthly duration of calls,
- Temporal distribution of calls.

Landline telephony:

- Numbers of different types of subscriptions,
- Breakdown of the turnover of the most frequently subscribed and used services.

Internet Service Providers (ISPs):

- Numbers of old and new subscribers,
- Breakdown of the turnover of the most frequently subscribed and used services.