| Subject | English | German |
| econ. | automatic private branch exchange | Selbstwählfernsprech-Nebenstellenanlage |
| tech. | cordless private branch exchange | schnurlose Nebenstellenanlage |
| commun. | digital private branch exchange | Digital-PBX |
| telecom. | digital signaling method for private branch exchanges | digitales Kennzeichenverfahren für Nebenstellenanlagen Nr. 1 |
| busin., IT | private automatic branch exchange | Telefon-Nebenstellenanlage |
| tel. | private automatic branch exchange | Wähl-Nebenstellenvermittlungseinrichtung |
| telecom. | Private Automatic Branch Exchange | zentrale Einrichtung |
| post | private automatic branch exchange | private Selbstwähl-Nebenvermittlung |
| tech. | private automatic branch exchange | Fernsprechnebenstellenanlage |
| busin., IT | private automatic branch exchange | Telefonnebenstellenanlage |
| busin., IT | private automatic branch exchange | Fernsprech-Nebenstellenanlage |
| busin., IT | private branch exchange | private Nebenstellenanlage |
| tel. | private branch exchange | Nebenstellenvermittlungseinrichtung |
| commun. | private branch exchange | Fernsprech-Nebenstellenanlage |
| commun. | private branch exchange | Hauszentrale (CH, outdated) |
| commun. | private automatic branch exchange | Teilnehmervermittlungsanlage (PBX, PABX; CH) |
| commun. | private branch exchange | Wählunteranlage |
| commun. | private automatic branch exchange | Wählnebenstellenanlage |
| commun. | private branch exchange | Nebenstellenzentrale |
| commun. | private branch exchange | Mehrfachanschluss |
| telecom. | Private Branch Exchange | Nebenstellenanlage (Nebenstellenanlage mit Amtsanschluß) |
| comp., MS | Private Branch Exchange | Nebenstellenanlage (A private telephone network in an organization. Individual telephone numbers or extension numbers are supported, and calls are automatically routed to them. Users can call each other using extensions. They can also place calls to outside numbers) |
| construct. | private branch exchange | private Telefonanlage |
| busin., IT | private branch exchange | Nebenstellenanlage |
| gen. | private branch exchange | Nebenstellenanlage (Telefon) |
| gen. | private branch exchange line group | Sammelanschluss |
| busin., IT | private branch exchange private | Nebenstellenanlage |
| commun. | private manual branch exchange | handbediente Nebenstellenanlage |
| tel. | private manual branch exchange | Hand-Nebenstellenvermittlungseinrichtung |
| tel. | private non-branch exchange | interne private Vermittlungsstelle |
| tech. | telephone switchboard for private-branch exchange | Nebenstellen |
| tech. | telephone switchboard for private-branch exchange | Klappenschrank |
| commun. | terminating private branch exchange | Endvermittlung |