| Subject | English | Thesaurus |
| telecom., abbr. | Broadband ISDN User Part | B-ISUP (SS7) |
| IT, abbr. | Broadband ISDN User's Part | BISUP (B-ISDN) |
| IT, abbr. | Broadband ISDN User's Part | B-ISUP (B-ISDN) |
| abbr., IT | ISDN User Part | ISDN-UP |
| IT, abbr. | ISDN User Part | ISDNUP (ISDN, GSM, Mobile-Systems) |
| IT, abbr. | ISDN User Part | ISDN-UP (ISDN, GSM, Mobile-Systems) |
| telecom., abbr. | ISDN User Part | ISUP (SS7) |
| comp., abbr. | ISDN user part | ISUP |