SIM estate.One dashboard.
EE / Three / O2 / Vodafone. Mix the networks. One bill.
Voice + Data, data-only Mobile Broadband, and eSIM for business — across the four major UK networks, on a single ex-VAT invoice. Estate-management portal + HR/payroll APIs. New starter live in 90 seconds.
- Four UK networks
- EU roaming included
- eSIM ready
- API for HR / payroll
- Pooled allowances
- 30-day rolling option
Your VoiceCloud extension. In your pocket.
SIP-to-SIM. The mobile rings, the desk rings — same number, no app.
Giant Mobile launches as Giant's own-brand business mobile — physical SIM and eSIM, activated in minutes. The killer feature: attach a VoiceCloud extension to a real SIM card, so a desk-DDI rings the mobile natively over the cellular network. No softphone app, no SIP client, no second number — your business line, on your handset.
Stay flexible. Cancel any month, no exit fee.
Pay for what you need. No CPI+3.9% mid-contract.
Real people, real support. UK office.
Manage your plan, your way. Live tweaks in-app.
Attach a VoiceCloud extension to a real SIM. Inbound calls to your business DDI ring the mobile over the cellular voice channel — not over data, not via a softphone. Outbound calls present your business CLI by default. Works in weak-signal areas because it's a native voice call, not a packet stream.
Already on Giant Mobile? If you're on our existing multi-network SIM (Three / O2 / Vodafone), you'll be able to transfer to Giant Mobile at launch — same number, no PAC dance, no extra cost. We'll email you when the time comes.
Existing tariffs from £24.98/mo continue running alongside Giant Mobile at launch.
New starter on Monday. eSIM live by lunch.
HR raises the ticket, the eSIM email lands in the new starter's inbox, they scan the QR. No couriers, no SIM-in-post, no waiting for the post-room.
Which network actually works at yours?
Live Ofcom industry data. Drop in your office postcode — we'll show all four networks' signal on a map and recommend the Giant business tariff that matches the strongest carrier there. The estate portal lets you mix networks per-line afterwards.
Live Ofcom industry data · indoor + outdoor signal by operator
Three buckets. Mix as you like.
Voice + Data is the default, MBB for routers / tablets / IoT, eSIM for new starters. Same dashboard, same monthly bill, ex VAT.
Unlimited UK calls + texts
Unlimited mins · Unlimited texts
Unlimited mins · Unlimited texts
Unlimited mins · Unlimited texts
Unlimited mins · Unlimited texts
Ex VAT · 30-day rolling option · pooled allowances across the estate
One supplier. Four networks. Zero faff.
SIM Estate Management
Self-serve portal: add, suspend, swap network, view bills, set fair-use alerts. One dashboard for every SIM in the company.
EU + global roaming
EU roaming included on V&D plans. International data passes per-trip. Global Premium add-on for sales teams who live on planes.
eSIM provisioning
New starter joins Monday — they get a QR by email, scan it, line live within minutes. No SIM in the post, no admin cupboard of plastic.
Network choice per SIM
Some staff want O2 coverage at home, some want Three for unlimited data. Pick the network per user — same monthly bill, three carriers.
Run your fleet
from one dashboard.
The portal that ships with every business mobile account. Live usage meter, bulk operations, network sync, eSIM scanner, fair-use alerts. Same data the support team sees — but you don't have to ring them to use it.
Live usage liquid-meter
Real-time data + minutes per SIM, with at-a-glance fair-use indicators.
One-click network sync
Refresh connectivity remotely if a SIM's playing up. Saves a support call.
Adult-content bar toggle
Turn the network-level filter on / off per SIM. Useful for over-18 contractors.
Inline eSIM scanner
Scan / re-issue eSIM QR codes from inside the portal. No third-party app.
Last-seen network + country
See where every SIM has actually been roaming, when it last hit a tower.
Fair-use alerts + thresholds
Email + SMS alerts at 80% / 100% / 120% of bundle, per SIM or estate-wide.
REST API + webhooks
Same operations as the dashboard, available as a clean REST API. The common pattern: a webhook fires when an employee record is created in BambooHR / Personio / HiBob, our API auto-provisions an eSIM, the QR email lands in the new starter's inbox before they've finished onboarding.
- Provision SIM (V&D / MBB / eSIM)
- Suspend / reactivate SIM
- Port-in / port-out submission
- Real-time usage + bill query
- Webhook: SIM activated / threshold hit / port complete
New starter at 09:00. Live by 09:02.
The cleanest mobile-onboarding flow in UK B2B. No SIM in the post, no admin cupboard of plastic, no waiting for HR. The whole thing fits inside a coffee break.
HR raises the ticket
New starter's email + network preference goes into the SIM Estate portal. Takes 30 seconds.
QR email auto-fires
User receives a branded email with the eSIM QR + activation instructions inside 60 seconds.
Scan it on the phone
Open Settings → Cellular → Add eSIM → Scan. iOS + Android both supported, no app required.
Live + on the network
Line registers within minutes. Calls + texts + 5G data immediately. Pay-day-one ready.
Works on iOS 12.1+ and Android 9+ on supported carrier-unlocked devices. Older handsets fall back to a physical SIM, next-day delivery, no charge.
What you actually buy vs going direct.
Buying mobile from a single carrier (Vodafone Business / O2 Business / Three Business / EE Business) means one network, one bill, one set of features. Buying through Giant means choice across all four — plus the dashboard the high-street brands gate behind enterprise tiers.
- Single bill across networks—Yes
- Self-serve estate portalSomeYes
- Mix EE / O2 / Vodafone / Three—Yes
- eSIM provisioning by emailSometimesStandard
- 30-day rolling optionRareYes
- EU roaming includedLimitedV&D plans
- REST API for HR/payrollEnterpriseYes
- Bulk PAC/STAC handled for youDIYWe do it
- Account manager based in UKVariableYes — UK office
- Mid-contract price changesHidden CPI+30-day notice, exit free
Bring your fleet over. Two weeks, end-to-end.
Most estate moves we do are 50–500 SIMs. Here's what the process actually looks like — we coordinate with the losing carrier, you stay out of it. Zero per-SIM downtime; cutovers run at quiet hours.
Estate audit
We pull a CSV from your existing carrier (PAC / STAC codes per number, plan tier, contract end-dates). 2–3 working days.
Plan match + dashboard set-up
We map each existing SIM to a Giant equivalent (same network or better), provision the dashboard, set up cost centres + reporting groups.
Batched cutover
We submit ports in waves — typically 50–100 SIMs per day, scheduled around your operational quiet times. Zero downtime per SIM.
Hand over + run rate
Estate management dashboard live, account team intro'd, first invoice cycles. We keep the losing carrier on hold for 30 days as belt-and-braces.
We keep your old carrier on a 30-day standby after cutover — if anything misroutes, we catch it. Most estates never need it.
Two things SMB plans just don't do.
Pooled allowances
Each SIM's bundle pools into a single account-wide allowance. So 10 SIMs × 5GB = 50GB shared across the team. One heavy-data user doesn't push everyone into out-of-bundle. Fair-use alerts fire at the estate level, not per-SIM.
Lost / stolen — instant suspend
Suspend any SIM in 5 seconds from the portal (or via support, 24/7). eSIM re-issue is instant. Physical SIM replacement is next-day, free of charge. Suspended SIM doesn't bill while frozen — saves the cost of paying for a phone that's at the bottom of the Mersey.
- Suspend in 5 seconds, anywhere
- eSIM re-issue: instant
- Physical SIM: next-day, free
- No billing while suspended
Six sectors that live on the dashboard.
The customer base that actually uses estate management. If you recognise yours, the use-case below is what we typically wire.
Property + facilities
Multi-site retail, property management — site-manager SIMs across 50+ locations on a single bill
Field service
Engineers / installers / drivers needing reliable signal across postcodes — multi-network mix
Sales teams
BDMs on calls all day. Unlimited V&D, EU roaming for the trade-show circuit
IoT + M2M
Vending machines, EV chargers, smart-building sensors — Three M2M Unlimited £20.82/mo
Hospitality
Hotel groups, restaurant chains — duty-manager SIMs, swap-and-suspend on rota changes
Healthcare + care
Mobile field nurses, care-coordinators — adult-content-bar control, location reporting
Rolling option. No 36-month tie-in unless you want one.
Most plans run 30-day rolling, 12-month, 24-month, or 36-month. Mix terms within the estate. Any mid-contract price change gets 30 days' written notice with the right to exit free — no buried CPI+3.9% clause.
Business mobile, straight answers.
More on business mobile.
The full sub-pages for each piece of the business mobile stack.
Email-provisioned eSIMs for new starters. Live in minutes, no postman.
Dashboard for the whole fleet. HR/payroll APIs. Bulk PAC/STAC handled.
MBB / IoT / failover SIMs without a voice plan. Pooled data, static IPs.
Broadband, leased lines, VoIP, numbers, guest WiFi — one ex-VAT invoice.
Pair mobile with our cloud phone system — same DDI on desk and SIM.
Local 01/02, 0330, 0800, and gold patterns. All route into VoiceCloud.
Move your estate in two weeks.
Bulk PAC porting, account setup, dashboard onboarding. We coordinate with the losing carrier so HR doesn't have to. Free for moves above 25 SIMs.