- 4.1.1. Parameters and levels of quality of service
- 4.1.2. Strategy of the universal service provider (USP) for public pay-telephones
- 4.1.3. Affordability - fixed telephone system (FTS) residential tariff provided within the scope of the universal service
- 4.1.4. CLSU - Custos líquidos da prestação do serviço universal (Net costs of universal service provision)
- 4.1.5. Procedure for designating the universal service provider (USP)