Normy ETSI - Evropský úřad pro normalizaci v telekomunikacích - strana 5681

Public Switched Telephone Network (PSTN); Real time clock [CEPT Recommendation T/CS 20-18 E (1981)]

Norma vydaná dňa 15.9.1995

Electromagnetic compatibility and Radio spectrum Matters (ERM); Close Range peer-to-peer symmetrical Data Communication (CRDC) system

Norma vydaná dňa 6.5.2002

User Group; Quality of Telecom Services; Part 1: Methodology for identification of parameters relevant to the Users

Norma vydaná dňa 8.2.2002

User Group; Quality of telecom services; Part 1: Methodology for identification of parameters relevant to the Users

Norma vydaná dňa 25.1.2007

User Group; Quality of telecom services; Part 1: Methodology for identification of indicators relevant to the Users

Norma vydaná dňa 2.12.2014

User Group; Quality of telecom services; Part 2: User related parameters on a service specific basis

Norma vydaná dňa 8.2.2002

User Group; Quality of telecom services; Part 2: User related parameters on a service specific basis

Norma vydaná dňa 25.1.2007

User Group; Quality of telecom services; Part 2: User related indicators on a service specific basis

Norma vydaná dňa 2.12.2014

User Group; Quality of telecom services; Part 3: Template for Service Level Agreements (SLA)

Norma vydaná dňa 8.2.2002

User Group; Quality of telecom services; Part 3: Template for Service Level Agreements (SLA)

Norma vydaná dňa 25.1.2007