
Choosing a telecoms solution for your company can be confusing. You may have been baffled by the vast array of abbreviations used to describe products. If you don’t know the difference between FTTC and FTTP, this guide is for you. We have broken down the most important telecom terms and acronyms to help you stay ahead.
Legacy Technology: ADSL and ISDN
Many businesses are moving away from older copper-based technologies.
- ADSL (Asymmetric Digital Subscriber Line): This technology provides broadband over traditional copper wires. It is “asymmetric” because download speeds are faster than upload speeds.
- ISDN (Integrated Services Digital Network): This system integrates voice and data over the same line. Please note: The UK is currently completing the phase-out of ISDN. If your company still relies on this, you must switch to modern alternatives like VoIP immediately.
The Evolution of Fibre: FTTC, G.fast, and FTTP
Understanding how your internet reaches your building is vital for performance.
FTTP (Fibre To The Premises): This is the gold standard for 2026. The fibre cable goes all the way into your business. It offers significantly faster speeds. Additionally, the signal is not shared with neighbours. This is now the standard for all new commercial builds.
FTTC (Fibre To The Cabinet): This uses fibre cables from the exchange to the green “cabinet” on your street. However, the last part of the journey to your office uses copper wiring. This can slow down your connection.
G.fast: This is a “half-way house” between FTTC and FTTP. It uses a device at the cabinet to boost the signal over the remaining copper wires to your premises.
Hopefully, the above has helped lift some of the fog over all the abbreviations you see in the telecoms industry. But, if you have any questions, please get in touch, we’ll be happy to explain.


