Direct answer
Use 5G where signal and cell capacity are strong. Check Starlink where terrestrial coverage is weak or a separate satellite path improves backup diversity. Test both at the exact site.
Test Starlink and 5G with the same workload
- Indoor and proposed outdoor placement
- Morning and peak-hour performance
- Upload, latency and packet loss
- VPN and voice behaviour
- Data limits or priority treatment
- Public IP and inbound access
- Failover and recovery
When to use Starlink and 5G together
A temporary site may use the better path as primary and the other as backup. A vessel may use coastal mobile service and transition to an eligible maritime satellite service. Two modems do not create a working hybrid design; routing policy and testing are still required.
Sources
Sources checked for this page
Business Starter wireless internetdu · Checked 1 September 2026
Current wireless business offer structure and mobile-network delivery
Fibre Optics Connectivity for businessdu · Checked 1 September 2026
du fibre characteristics, stated business speeds and fibre/5G comparison
Prepare for install and select a locationStarlink Help Center · Checked 1 September 2026
Clear-sky requirement, obstructions and site-selection guidance
Service Plan DescriptionsStarlink · Checked 1 September 2026
Plan eligibility, business-use restrictions, congestion and non-guaranteed performance