| filename extensions | art-335 |
| ipu | |
| TechTarget file types | art-336 | IPU-Internet-Phone-User-Vocaltech-IPhone |
| TechTarget file types | art-336 | IPU-Vocaltech-Iphone-Internet-Phone-User-File |
| English | eng-000 | Internet Phone User |
| English | eng-000 | Vocaltech Iphone Internet Phone User File |