In order to be able to apply the criteria for the identification of relevant specific retail markets in the electronic communications sector, main objectives of these market studies were the following: 1. analysis of the user behaviour for mobile and fixed telephony services and the impact of the use of mobile telephony services on the use of fixed telephony (both in the case of business users and in the case of residential users). 2. analysis of the user behaviour for Internet services (both in the case of business users and in the case of residential users). For the purposes of these studies, the user categories were defined as follows: – residential users of telephony services – households endowed with a fixed-line telephone set, or using mobile telephony services which are not even partially paid by a legal person.. – residential Internet users – natural persons in the urban area, aged 15 – 50, using the Internet at least once a week – business Internet users – companies using Internet services.
– business users of telephony services – companies using at least one telephony service
Study on the use of fixed telephony services and the impact of the use of mobile telephony services on the use of fixed telephony – residential users (a quantitative study)

Chapter 1 – Executive Summary 
Chapter 1 – Executive Summary 
Chapter 2 – Objectives and Methodology
Chapter 2 – Objectives and Methodology
Chapter 3A – Use of Telephony Services 
Chapter 3A – Use of Telephony Services 
Chapter 3B – Use of Telephony Services 
Chapter 3B – Use of Telephony Services 
Chapter 4A – The Fixed Telephony Market
Chapter 4A – The Fixed Telephony Market 
Chapter 5A – The Mobile Telephony Market
Chapter 5A – The Mobile Telephony Market
Chapter 5B – The Mobile Telephony Market 
Chapter 5B – The Mobile Telephony Market 
Chapter 6 – Fixed-Mobile Telephony Substitution 
Chapter 6 – Fixed-Mobile Telephony Substitution 
Chapter 7 – Demographic Profile
Chapter 7 – Demographic Profile
Annex 1- Screening Questionnaire 
Annex 1- Screening Questionnaire 
Annex 2 – Main Questionnaire 
Annex 2 – Main Questionnaire 
Annex 3 – Chapter-Question Match Table 
Annex 3 – Chapter-Question Match Table
Study on the use of fixed telephony services and the impact of the use of mobile telephony services on the use of fixed telephony – business users (a quantitative study)

Chapter 1 – Executive Summary
Chapter 1 – Executive Summary 
Chapter 8 – Companies’ Profile
Chapter 2 – Objectives and Methodology 
Chapter 2 – Objectives and Methodology 
Chapter 3 – Use of Telephony Services 
Chapter 3 – Use of Telephony Services 
Chapter 4 – The Fixed Telephony Market 
Chapter 4 – The Fixed Telephony Market 
Chapter 5 – The Mobile Telephony Market 
Chapter 5 – The Mobile Telephony Market 
Chapter 6 – Fixed-Mobile Telephony Substitution 
Chapter 6 – Fixed-Mobile Telephony Substitution 
Chapter 7 – Perceptions on Telephony Tariffs
Chapter 7 – Perceptions on Telephony Tariffs
Chapter 8 – Companies’ Profile
Annex 1- Screening Questionnaire 
Annex 1- Screening Questionnaire 
Annex 2 – Main Questionnaire 
Annex 2 – Main Questionnaire 
Annex 3 – Chapter-Question Match Table 
Annex 3 – Chapter-Question Match Table
Study on the use of the Internet – residential users (a quantitative study)
Study on the use of the Internet – business users (a quantitative study)