Standard mobile SIM cards use Dynamic IP addresses (CGNAT), meaning the IP address changes constantly and is hidden behind the network provider’s firewall. While this is fine for basic “dial-to-open” GSM gates, it poses a massive problem for advanced access control and IP-based video intercoms.
For complex installations, you need Fixed-IP SIMs for gate systems.
Why Advanced Gates Need a Fixed IP
If your gate system utilizes a 4G router to connect IP cameras, an ANPR (Automatic Number Plate Recognition) camera, or a complex PC-managed access control board, you must be able to initiate a connection to the gate from the outside world.
- Remote Management: Facilities managers need to log into the gate’s web interface remotely to add or delete PIN codes, key fobs, or authorized phone numbers.
- Direct Video Streaming: To view a live feed from the gate’s IP camera securely via specific software (rather than relying on a third-party cloud P2P server), the router needs a public, unchanging address.
- Integration: Linking a remote gate into a wider corporate security network or a central control room requires a Static IP to establish a secure VPN tunnel.
The Anywhere SIM Static IP Solution
Finding a Static IP SIM is easy; finding one that is reliable is hard. Most Static IP providers lock you to a single network (like Three). If that network drops, your remote access is severed.
Anywhere SIM provides the ultimate secure solution: Multi-Network Fixed IPs. Your gate retains the exact same Static IP address, even when the SIM card actively roams between different networks (EE, O2, Vodafone, Three). This ensures your VPNs stay up and your management portals remain accessible, backed by the 99.9% uptime guarantee of unsteered multi-network roaming.