No Wi-Fi required. GSM diallers let you open your gate with a missed call — perfect for homes and offices across Karachi.
What is GSM Gate Control?
GSM (Global System for Mobile) gate controllers connect your gate automation to the mobile network — not your home Wi-Fi. This makes them far more reliable in areas with inconsistent internet, which describes most of Karachi.
How It Works
- A SIM card is installed in the GSM module on your gate controller.
- You register authorised phone numbers in the module's memory.
- To open the gate, you call the module's number (or send a missed call — free of charge).
- The module recognises your number and triggers the gate.
Benefits
- **Works during load-shedding** (with battery backup)
- **No internet dependency** — uses the cellular network
- **Up to 200 numbers** can be stored on most modules
- **Access logs** — some models record every open command with timestamp
- **Remote management** — add or remove numbers via SMS
GSM vs Wi-Fi Smart Controllers
| Feature | GSM Module | Wi-Fi Smart Controller |
|---|---|---|
| Internet needed | No | Yes |
| Load-shedding risk | Low (with backup) | High |
| Setup complexity | Low | Medium |
| Remote management | SMS | App |
| Monthly cost | SIM only | None (post setup) |
Installation in Karachi
Safety Links installs GSM modules alongside new gate systems or retrofits them onto existing automation. Supported brands include FAAC, BFT, and CAME. Contact us for pricing.