With the shutdown of Australia's 3G networks, GSM gate systems that relied on 3G connectivity are now inoperative. To restore functionality, consider the following options:

1. Upgrade to 4G-Compatible GSM Gate Controllers: Modern GSM gate controllers operate on 4G networks, ensuring continued remote access. Eg, Palgate.

2. Look at alternative systems: As an alternative to replacing 3G with a 4G system, consider alternatives like wifi or bluetooth systems, eg Remootio.

3. Consult with Security and Automation Professionals: Engaging professionals can help identify the most suitable upgrade or replacement options tailored to your specific needs.They can also assist with installation and configuration to ensure seamless operation.

4. Verify Network Coverage and Device Compatibility: Before implementing upgrades, confirm that your area has adequate 4G or 5G coverage. Additionally, ensure that any new devices support Voice over LTE (VoLTE) to maintain full functionality, including the ability to make emergency calls.

By proactively upgrading your GSM gate system to be compatible with 4G or 5G networks, you can maintain reliable and secure access control in the post-3G era.