› connectivity & telecoms
leased lines & wan
Leased LinesDedicated, uncontended fibreDedicated Internet AccessGuaranteed, SLA-backedFTTP & Full FibreUltrafast full fibreSD-WANIntelligent multi-site WANMulti-Site ConnectivityOne secure networkBackup ConnectivityAutomatic 4G/5G failovermobile
Business MobilesO2, Vodafone & EE airtimeSIM Only DealsFlexible 30-day & 24-monthMobile Broadband4G / 5G data-only SIMsStatic IP SIMsFixed IP for IoT & failovertelecoms
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Wifinger
Our own guest Wi-Fi platform: a branded login page on the access points you already have, plus consent, analytics and marketing — designed, installed and managed by us.
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› surveillance & data infrastructure
Mobile Broadband & Data-Only SIMs
4G and 5G data-only SIMs, managed routers and MiFi for tablets, laptops, pop-up sites, IoT and internet failover — with eSIM and resilient multi-network options.
Instant internet, anywhere you need it
Mobile broadband uses the 4G and 5G networks to get you online without a fixed line. It's perfect for tablets and laptops, temporary and pop-up offices, event stands, and sites waiting for a leased line to be installed — you can be connected the same day.
We supply data-only SIMs, plug-and-play 4G/5G routers and pocket MiFi devices, plus resilient multi-network SIMs that roam across every UK network. It's also the ideal automatic failover for your main internet connection.
- Data-only SIMs for any device
- 4G & 5G routers and pocket MiFi
- Same-day connectivity for pop-up sites
- Automatic 4G/5G failover for your office
› data-only pricing
Data-only SIM pricing by network
Pure data SIMs for tablets, laptops, routers and MiFi. Pick your allowance and see the exact price on each network.
Prices ex VAT · 24-month term · Data-only — voice/premium-rate barred. For a fixed IP, choose a Multi-Network Resilient SIM or a managed router.. Buy now shown as a no-obligation enquiry.
› managed devices
4G & 5G routers and MiFi
Plug-and-play devices, pre-configured and shipped ready to go. Includes unlimited data (fair-use) and a static IP option.
| Device | Monthly | Best for |
|---|---|---|
| 4G Router (Wi-Fi) | from £54.99 | Pop-up offices & failover |
| 5G Router (Wi-Fi) | from £59.99 | Busy offices needing speed |
| 4G Plug-in (wired) | from £44.99 | Wired failover, no Wi-Fi |
| 5G Plug-in (wired) | from £57.99 | Ultrafast wired failover |
| Pocket MiFi | from £29.99 | Mobile workers & hot-desking |
£39 one-off setup. Antenna options available for weak-signal locations.
› multi-network resilient sim
Always-on resilient data SIMs
A single SIM that roams across all UK networks and locks onto the strongest signal — built for card machines, CCTV, signage, IoT and failover.
| Monthly data | Price / SIM | Networks |
|---|---|---|
| 1GB | £6.99 | O2 · VF · EE · Three |
| 5GB | £16.99 | O2 · VF · EE · Three |
| 20GB | £49.99 | O2 · VF · EE · Three |
| 50GB | £119.99 | O2 · VF · EE · Three |
| 100GB | £229.99 | O2 · VF · EE · Three |
Static IP and IMEI-locking options for secure, managed deployments.
› choose your network
O2, Vodafone or EE — we'll help you choose
Different networks shine in different places. We compare coverage and value for your postcodes and can even mix networks on one account.
Great value & strong urban coverage
Excellent coverage across UK towns and cities with reliable 5G in built-up areas. Our best-value network for most business users.
Widest 5G footprint & inclusive EU roaming
One of the UK's largest 5G networks with strong data performance and inclusive EU roaming. Ideal where fast mobile data is business-critical.
Award-winning speed & rural reach
Consistently rated the UK's fastest and most reliable network, with the broadest rural coverage. The premium choice for field and remote teams.
› coverage & restrictions
Where your SIM works — and the small print
United Kingdom
Full 4G and 5G coverage on O2, Vodafone and EE across the UK, including unlimited UK minutes and texts on all voice plans.
EU & EEA roaming
Use your allowance in 48+ European destinations at no extra cost on Professional and Unlimited plans, subject to a fair-use data cap (typically 25GB/month).
Rest of world
Travelling further afield? Add a global roaming pass from £6/day covering 100+ countries across the Americas, Asia, Africa and Oceania.
Inclusive EU & EEA roaming destinations
Included on Professional & Unlimited plans (fair-use data cap applies). Other plans can add roaming from £2/day.
Fair use & restrictions
- Unlimited data is subject to a Fair Usage Policy (around 500GB/month of UK data).
- Roaming data on unlimited plans is capped at approximately 25GB/month in Europe.
- Data-only SIMs bar voice calls and premium-rate / age-restricted services by default.
- 30-day rolling plans can be cancelled with 30 days' notice; 24-month plans carry an early-termination fee.
- 5G access depends on a compatible device and local network coverage.
- eSIM requires a compatible, network-unlocked device.
- Out-of-bundle UK data is charged per GB; we set usage alerts to avoid surprises.
› static ip & secure access
Static IP addresses for secure, remote access
By default, mobile SIMs use a shared, dynamic IP that changes and sits behind carrier NAT — fine for browsing, but no good if you need to reach a device remotely. A static IP gives each SIM a fixed, known address so you can securely connect to routers, CCTV, IoT and payment terminals from anywhere. It's available on our Multi-Network Resilient SIMs and comes as standard on managed 4G/5G routers (standard data-only SIMs don't support it).
Fixed IP per SIM
A permanent, non-changing IP assigned to each SIM or router for reliable remote access.
Private APN & VPN
Route traffic over a private APN into your own network or VPN, away from the public internet.
Locked-down security
IMEI locking ties a SIM to one device, with firewall rules restricting who can reach it.
Remote management
Reach and manage devices, cameras and terminals from head office or on the move.
Private static IP
FreeA fixed address that routes into your own private APN or VPN. It is NOT reachable from the public internet, so it's the most secure option for connecting devices back to your network.
Public static IP
Add-onA fixed, internet-facing IP address so you can reach the device directly from anywhere (e.g. remote support, CCTV, IoT). This is a chargeable add-on, applied per SIM.
› options explained
The right option for every use case
Data-only SIM
Pure data for tablets, laptops, routers and dongles — no voice, just fast, reliable connectivity.
- 4G & 5G data
- eSIM or physical
- Up to unlimited
- Any device
Multi-network resilient SIM
Roams every UK network automatically for maximum uptime — the go-to for IoT, payments and failover.
- Roams O2/VF/EE/Three
- Best-signal switching
- Static IP options
- M2M & IoT ready
› esim ready
Every plan is eSIM-ready
An eSIM (embedded SIM) is a digital SIM built into your device — no plastic card required. Activate a new line by scanning a QR code and you're live in minutes. Every CLI Secure plan is available as an eSIM on O2, Vodafone and EE, at no extra cost.
Instant activation
Scan a QR code and your line is live in minutes — perfect for new starters, replacements or urgent deployments.
Dual SIM flexibility
Run a business and personal number on one handset, or keep two networks active for resilience while travelling.
More secure
An eSIM can't be physically removed or swapped by a thief, making lost or stolen devices harder to misuse.
Built for travel & IoT
Switch network profiles remotely and add local data abroad — ideal for global travellers and connected devices.
› why cli secure
Business mobile, done properly
Same-day connectivity
Get a pop-up office, event or new site online instantly while you wait for a fixed line.
4G & 5G routers
Plug-and-play routers and pocket MiFi, pre-configured and shipped ready to use.
Automatic failover
Keeps your office online if the main internet drops — calls and card payments keep working.
Multi-network resilience
Resilient SIMs roam every UK network for the strongest possible signal, everywhere.
eSIM & static IP
eSIM activation for compatible devices, plus static IP options for secure remote access.
One managed bill
SIMs, routers and data on a single consolidated bill with UK-based support.
› get a quote
Get a tailored mobile broadband quote
Tell us what you need and we'll compare O2, Vodafone and EE to send your best-value options — usually within one working day. No obligation.
- We compare all three networks
- eSIM or physical SIM — your choice
- Zero-downtime number porting
- One simple, UK-managed bill
› faq
Mobile Broadband, answered
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