public switched telephone network
aggregate of all circuit-switched telephone networks
üksikjuht nähtusest
telephone network
kasutaja
plain old telephone service
Commonsi kategooria
Telephones
teema peakategooria
Category:Telephone networks
Viited
- ↑ BabelNet
- ↑ OpenAlex, 26. jaanuar 2022, https://docs.openalex.org/download-snapshot/snapshot-data-format
- ↑ Freebase Data Dumps, 28. oktoober 2013