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| English | German |
| Broadband Integrated Services Digital Network | Breitband-ISDN (An International Telecommunication Union - Telecommunication [Standardization Sector] (ITU-T) communication standard for high-speed networking that provides new services, including voice, video, and data on the same network) |
| Integrated Services Digital Network | ISDN (A high-speed digital technology that uses existing telephone lines to provide Internet access) |