Domaći
| razina pričuva | level of reserves | |
| razina primjene | application layer | |
| razina prometa | traffic level | |
| razina signala zvonjenja | ringing signal level | |
| razina upravljanja mrežom | network management layer | |
| razina upravljanja pojedinačnim elementima | element management layer | |
| razina usluge | grade of service | |
| razina usluge | level of service | |
| razina zagađenja | pollution level | |
| razina zaštite | level of protection | |
| razina znanja | knowledge level | |
| razina znanja | the knowledge level | |
| razinama | levels |
