The Best Internet Setup for a Remote Branch Office
A branch office usually runs on whatever internet the building came with: one cable or DSL line carrying the point-of-sale terminals, phones, cameras and staff logins. When that line fails, the whole site goes offline with it, because the traffic has nowhere else to go. Adding 4G/5G cellular failover to office internet gives it a second path.
Speedify is software that runs a site over every internet line available at once (the wired circuit, 4G/5G cellular, Starlink and other satellite internet connections), so one failure is absorbed by the rest. With a single line, Speedify still encrypts the traffic but cannot stop that line from dropping.
Speedify keeps your business online when the office connection fails.
This article covers what a branch needs, why one provider cannot deliver it, and how a rollout across several branches works. Contact the Speedify team about a rollout, and branches stay online without new hardware on site.
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How Speedify combines internet connections on any hardware
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Speedify offers three commercial paths. They work together, and most enterprise customers use two or more.
01
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02
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03
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A · DIY
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Branch Internet Connectivity Requirements and Risks
A remote branch office typically needs steady bandwidth for point-of-sale terminals, security cameras, VoIP handsets, and staff access to internal systems, often running through a single circuit installed long before headcount doubled.
That circuit becomes a single point of failure: an ISP outage, a cut line, or ordinary peak-hour congestion drops every one of those systems at once. Branches in strip malls or industrial parks frequently have only one or two ISP options to begin with, so redundancy has to come from combining what’s already available rather than waiting months for a second fiber drop.
Single ISP vs Combined, Managed Connectivity
A single-ISP branch is only as reliable as that one contract, and switching providers after a bad outage does nothing to prevent the next one. Combining connections takes a different approach: Speedify uses every available circuit at a branch at the same time, so losing one ISP no longer takes the branch offline.
The same approach that keeps a single remote worker productive, covered in reliable internet while working from anywhere, scales down to a two-person kiosk or up to a fifty-branch retail chain without changing the underlying technology.
How Speedify Combines Wired and 4G/5G Cellular at Each Branch
At each branch, Speedify treats the existing cable or fiber line as one active path and adds one or more 4G/5G cellular connections to the same encrypted tunnel, not as standby.
Traffic splits across both in real time, and if the wired line saturates during a busy afternoon or drops entirely, Speedify moves the traffic to the cellular connection in milliseconds and keeps the same public IP, so calls and card transactions keep running without a reconnect. All traffic travels encrypted (DTLS 1.2 with AES-256-GCM or ChaCha20-Poly1305), so branch data crossing a cellular carrier’s network is protected on the way to the Speedify server.
Central Management, Static IPs, and Rollout Across Branches
Multi-branch deployments need more than a good connection at each site. With Speedify Teams, IT manages users and views usage statistics for every location in the Teams Dashboard, and pushes Speedify settings to every branch through the Teams API. A Speedify Dedicated Server adds a static IPv4 address for allow lists and consistent routing.
Rolling out combined connectivity across a branch network follows a short sequence:
- Audit each branch’s existing wired connection and available cellular coverage.
- Download Speedify on the branch router, gateway device, or point-of-sale server.
- Push Speedify settings through the Teams API, and add a Speedify Dedicated Server where a branch needs a static IP.
- Pilot the setup at two or three branches before a full rollout.
- Budget cellular data per branch based on actual combined usage, not worst-case guesses.
Combining needs at least two working internet connections to add resilience, and it does not invent bandwidth a branch’s connections do not already have. A branch with a slow DSL line and a weak cellular signal stays capped by the sum of those two; Speedify makes sure the branch actually gets that sum instead of losing capacity to an outage.
Speedify Is Used on Millions of Devices Worldwide
Speedify has made internet connections faster and more reliable for businesses and individuals since 2014.
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Of internet traffic carried by Speedify every weekSpeedify Partners
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Remote Branch Office Internet: FAQ
Does Speedify replace a branch’s existing ISP?
Speedify works alongside the existing ISP connection rather than replacing it, adding cellular or additional wired lines into the same encrypted tunnel for extra capacity and redundancy.
Can one IT team manage Speedify across many branches?
Yes. With Speedify Teams, one IT team manages users and views usage statistics in the Teams Dashboard and pushes Speedify settings to every branch through the Teams API. Static IPs come from Speedify Dedicated Servers.
What happens to a VoIP call if a branch’s main line drops?
Speedify moves an active call to a remaining connection in milliseconds and keeps the same public IP, so a dropped wired line does not disconnect an in-progress conversation.
Is branch traffic secure when it travels over cellular?
Speedify encrypts every packet (DTLS 1.2 with AES-256-GCM or ChaCha20-Poly1305) regardless of which underlying connection carries it, including cellular networks.
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.