VidexSIM capable
GSM4KCR/4G Technical Manual
- Connectivity
- 4G LTE, 2G/3G fallback
- SIM
- Nano (4FF)
- Category
- Intercoms
Videx's classic one-to-multi button GSM audio intercom for gates and doors, the UK installer staple.
Codelock variant | Radio verified 2026-08-10 vs Videx-GSM4K-4KCR-Manual-1.pdf (p.2, 4, 33), the shared manual for GSM4K/4G and GSM4KCR/4G: SIM7600G-H LTE/HSPA/GSM module; nano SIM only. UK caveat: 3G is switched off across all UK MNOs (completed 2025); 2G remains until the planned 2033 switch-off.
SIM installation guide
Which SIM, how to fit, first-power-up test.
Keep your Videx GSM4KCR/4G online.
LynixSIM multi-network SIMs connect to the strongest UK signal (EE, O2, Vodafone, Three) — no single-network dropouts, no contracts, built for intercoms and gate systems.
Get your SIMFor engineers
Installing these for a living?
LynixSIM Trade gives engineers bulk SIMs, set-your-own pricing and monthly recurring income on every SIM you fit.
See LynixSIM Trade