A remote camera, payment terminal or sensor is only useful if you can reliably reach it. Plenty of installers discover the hard way that a standard mobile data SIM assigns a new IP address every time the device reconnects, which quietly breaks port forwarding, VPN tunnels and any dashboard that was set up to "remember" the device's address. The fix isn't a stronger signal — it's a SIM built to keep the same address every time.

That's the specific gap GleeSim's 2GB Multi-Network Fixed IP SIM is built to close. It pairs a static IPv4 address with automatic switching across three UK networks — Vodafone, O2 and Three — so remote equipment stays both reachable and connected, rather than having to choose between the two.

The Trouble With a Standard Data SIM for Business Hardware

Consumer and general business SIMs are built for browsing, not for hosting a connection that something else needs to find. Every time the device drops off and reconnects — after a power cut, a signal gap, or a scheduled restart — a standard SIM can hand back a different IP address. If your VPN, firewall rule or remote-viewing software was pointed at the old one, it simply stops working until someone manually updates it.

For a single device that's an annoyance. Across a fleet of cameras, terminals or sensors, it turns into a recurring support job that nobody has time for.

What a Static IP Actually Fixes

With this SIM, the IPv4 address assigned to your device doesn't change. According to the product listing, that comes with full control over how the connection is used: