| English | eng-000 |
| voice over IP | |
| English | eng-000 | IP telephony |
| English | eng-000 | internet protocol telephony |
| English | eng-000 | internet telephony |
| Esperanto | epo-000 | rettelefonado |
| hrvatski | hrv-000 | IP telefonija |
| hrvatski | hrv-000 | govor putem Internet protokola |
| 日本語 | jpn-000 | IP電話 |
| 日本語 | jpn-000 | アイピーでんわ |