98% of adults
carry the handset already.
A door entry system used to mean a handset on every flat’s wall. Almost everyone now carries a better one. These are Ofcom’s figures, not ours.
Smartphone use, by age.
Under 65, practically everyone. Older residents are the gap: 72% of over-75s use a smartphone.1
For residents without a smartphone. If nobody answers in the app within 20 seconds, or nobody in the flat has it, Buzz-In rings the flat’s own phone, mobile or landline. They press 1 to talk to the visitor and enter a PIN to open the door.
For installersThe signal is where the doors are.
Buzz-In’s door controller carries its own 4G connection, and residents answer on 4G, 5G or WiFi.
of UK premises get 4G outdoors from all four networks2
of the UK’s land area has 4G from at least one network — 84% from all four2
of premises get 5G outdoors on the best-covered network2
of UK call minutes now start on a mobile network3
Coverage figures are Ofcom’s outdoor predictions for January 2026. Signal indoors is lower, most of all in rural areas.
What comes next.
Each of the four operators must cover 90% of the UK’s land area with 4G on its own — not just between them.
The Government’s ambition for nationwide standalone 5G wherever people live.
The GSMA’s forecast for mobile connections across Europe, with 4G down to 18%.
Agreed by the Government and all four operators. The networks of the future are 4G and 5G — which is what Buzz-In’s door controller uses.
Use the phone they already have.
Sources
- Ofcom, Technology Tracker 2026. Core data tables 78 and 85. 4,033 adults aged 16+ across the UK, interviewed face to face by Ipsos, March–June 2026. Published 11 August 2026.
- Ofcom, Connected Nations update: Spring 2026. Predicted outdoor coverage, January 2026.
- Ofcom, Communications Market Report 2026. Figures for 2025. Published 30 June 2026.
- Shared Rural Network: Ofcom licence obligations. As reported by ISPreview, June 2025.
- DSIT, UK Wireless Infrastructure Strategy. Published 11 April 2023.
- GSMA, The Mobile Economy Europe 2025. Press release, 15 January 2025.
- UK Government and mobile operators, joint statement on 2G and 3G. December 2021.