How to Add Cellular Failover to Office Internet Without New Hardware
You can add 4G/5G cellular failover to office internet without buying a new router or wiring in new equipment, so video calls, cloud apps, and VoIP phones keep working when the main line drops.
Speedify is software that combines Wi-Fi, 4G/5G cellular, Ethernet, Starlink and satellite internet connections into one connection. Speedify runs on the office’s computers, or on a supported router (OpenWrt 23.05 or later, listed GL.iNet models, or a Powered by Speedify router), and moves traffic to the remaining connections automatically if the main line fails.
Speedify bonds every link a site has, with no dedicated hardware
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How Speedify combines internet connections on any hardware
Get started with Speedify for your business
Speedify offers three commercial paths. They work together, and most enterprise customers use two or more.
01
Speedify Teams
Speedify on every supported OS for every team member
Centralized dashboard for billing, user provisioning, and usage analytics
CSV import/export and a RESTful management API
02
Speedify for Routers
License for supported OpenWrt routers
Powered by Speedify hardware lineup ready to deploy out of the box
Miri, GL.iNet and other partner models
Covers every device on the network, with no per-device install
03
Embed Speedify into your product
A · DIY
Build it yourself with the Speedify SDK.
Integrate Speedify into your iOS, Android, Windows, macOS, Linux or QNX product. Full developer documentation, sample code and supported integration paths. Your team owns the build, and the Speedify SDK handles combining the internet connections.
B · CUSTOM ENGINEERING
Have the Speedify team build it for you.
Why Offices Need 4G/5G Cellular Failover
Office work has moved almost entirely onto cloud tools, video conferencing, and hosted phone systems, all of which assume a stable connection is always there. When it is not, meetings get rescheduled, client calls drop, and staff sit idle waiting for IT to reset equipment. A single point of failure on one ISP line is a gap most offices have simply never gotten around to closing.
Dual-WAN Hardware vs Software: Two Ways to Add Cellular Failover
The traditional fix is a dual-WAN firewall paired with a second ISP contract, which usually means a new appliance, a networking consultant, and weeks of procurement and configuration before failover actually works. Speedify takes the software route instead, running on the office’s computers or on a supported router the office may already own, and adding failover without a hardware purchase.
For teams that want the architecture behind this approach at scale, Speedify’s enterprise page on combining internet connections explains how software replaces appliance-based SD-WAN, and combining Starlink and 5G for business shows how satellite and cellular work together for offices without reliable wired options.
How Speedify Adds 4G/5G Failover on Existing Devices
Once installed, Speedify treats a 4G/5G cellular hotspot or a phone’s cellular connection as a second active internet connection alongside the office’s wired line, not an idle spare. If the wired connection drops, traffic shifts to cellular automatically, so a video call or VoIP session keeps running instead of disconnecting and requiring a manual restart.
Setting Up Office Cellular Failover with Speedify: Coverage, Central Control and Cost
For offices that want every device covered rather than just the machine running Speedify, a Speedify-powered router extends combined, failover-protected internet to the whole network over existing Wi-Fi. IT teams managing more than one office can put every user and device on one Speedify Teams account. Setup follows a straightforward sequence:
- Confirm the office’s current wired connection and identify a 4G/5G cellular option to combine with it.
- Install Speedify on the office computers, on an existing supported router (OpenWrt 23.05 or later or a listed GL.iNet model, with a Router License), or on a Powered by Speedify router for whole-office coverage.
- Test failover with a deliberate disconnect before depending on it.
- Add the office to Speedify Teams if managing multiple sites centrally.
- Budget monthly cost around the cellular data plan rather than new appliance hardware.
One limit applies: Speedify needs at least two working internet connections, and it can’t add bandwidth beyond what those connections provide. An office with one degraded DSL line and a one-bar cellular signal stays limited by that signal, though the office still fails over cleanly if the wired line is the one that fails.
Speedify Is Used on Millions of Devices Worldwide
Speedify has made internet connections faster and more reliable for businesses and individuals since 2014.
15M+
Speedify downloads worldwide75K+
5-star reviews for Speedify on iOS and Android82
Speedify server points of presence in 50+ cities on 6 continents500TB+
Of internet traffic carried by Speedify every weekSpeedify Partners
Speedify works with these companies to bring faster, more reliable internet and networking technology to their customers and employees.
Office Cellular Failover: FAQ
Does adding cellular failover require a new firewall or router?
No. Speedify adds failover in software on the office computers or on a supported router the office already has (OpenWrt 23.05 or later, or a listed GL.iNet model). For whole-office Wi-Fi coverage without a supported router, a Powered by Speedify router is the one piece of hardware to add.
How quickly does the office switch to cellular if the main line drops?
Automatically, with no manual switch. Speedify already sends traffic over the cellular connection alongside the wired line, so when the main line drops, traffic moves to cellular and video calls and VoIP sessions usually keep running instead of disconnecting.
Can one IT administrator manage failover across several office locations?
Yes, for accounts and usage. Speedify Teams puts every office’s users and devices on one account: the Teams dashboard handles users, seats, billing and usage statistics, and the Speedify Teams API can push Speedify settings to the whole team without a site visit.
What does cellular failover typically cost per month?
Cost is driven mainly by the cellular data plan chosen for the office plus the Speedify subscription: Speedify Teams costs $7.49 per user per month billed yearly ($89.99 per user per year) or $14.99 per user month to month, and a Speedify Router License is priced by the amount of monthly data. There is no new appliance hardware to buy.
Speedify Business Solutions
Speedify Teams
Speedify for Routers
Speedify Embedded Solutions and Integrations
Add Speedify to your own app or hardware with the Speedify SDK. Your product then combines internet connections, fails over automatically when one drops, and encrypts the traffic, using the same technology as the Speedify app.