Short answer
Traditional failover is cold standby: fibre drops, 4G takes over, and live calls redial. Peplink runs fibre and LTE in parallel, so when the fibre fails, more traffic simply shifts to LTE without breaking the session.
In detail
The difference comes from how Peplink SpeedFusion works:
- Packet-level bonding: one flow rides multiple links at the same time, not one link per session.
- Sub-second hot failover: active TCP and UDP sessions, including SIP, RTP and RDP, survive a link cut.
- Forward Error Correction: recovers lost packets without retransmission, keeping voice and video clean on noisy links.
- WAN Smoothing: sends duplicate packets across bonded links for ultra-low-loss real-time traffic.
In practice, a VoIP or Teams call, a remote desktop session or a payment in progress continues when the fibre goes, rather than dropping and restarting. This is what lets a bonded edge ride through load-shedding, fibre cuts and tower failures.
FirstNet delivers it as a managed service: per-site survey, link selection for carrier and technology diversity, hardware sizing, InControl 2 cloud management run by FirstNet, and day-2 monitoring and ticketing through the FirstNet NOC.
Source: FirstNet Bonded Connectivity with Peplink service page →
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