Which UK network is best for calling the EU from a business mobile?

Most UK standard business plans (EE, Vodafone, Three) charge per minute for EU calls. O2 standard plans usually don't include EU calls either, though they include EU roaming (Roam at Home). CTN's business plans include inclusive EU calls as standard — 200, 500 or unlimited minutes to 39 countries including all EEA.

Does O2 business include EU calls from the UK?

O2's Roam at Home covers you roaming IN the EU — making calls while physically abroad. It doesn't typically include calls from the UK TO EU destinations on standard business tariffs. Calls from UK to EU numbers are usually per-minute international rates.

Is there an OFCOM rule on mobile price increases?

Yes. OFCOM banned CPI/RPI-linked mobile price increases from January 2025 — increases must now be shown in £ and pence on the contract. Most UK networks are now applying a fixed £2.50 + VAT/month increase each April. Business contracts are technically exempt but most networks apply the same rule anyway.

What's the cheapest way to call China from a UK business mobile?

Standard business mobile tariffs don't include China. Options: international add-on bolt-on (£5-15/month for China-inclusive), separate VoIP account (cheaper per minute), or using WhatsApp/WeChat voice over data. For heavy China volume, specific international-specialist tariffs may fit better.

Best Business Mobile for Calling the EU from the UK (2026 Comparison)

Last updated: April 2026

If calling the EU from the UK is part of your daily business — suppliers, trading partners, satellite offices, EU customers — here's which UK business mobile providers actually include it, which charge per minute, and which pretend to include it but have fair-use traps.

This is an honest comparison as of April 2026. Things change — we update this annually.

The EU-calling landscape (honest version)

Most UK business tariffs don't include calls to the EU from the UK at all — calls to European numbers are treated as international and billed per minute, typically 10p-30p/min. For a team of 10 making even modest international calls, that can add up to £100-300/month in out-of-bundle charges.

Provider-by-provider:

EE Business

Standard plans: EU calls charged per minute at international rates (generally 10-20p/min to EU landlines, higher for mobiles)
Higher-tier plans: Some include an "International Plus" add-on or inclusive minutes to a limited set of destinations
Generally needs bolt-on for genuine EU calling
Strength: UK coverage, 5G rollout, extensive business account management

Vodafone Business

Standard plans: EU calls typically per minute at international rates
Higher-tier plans: "Red Entertainment" and enterprise plans can include EU calls
Roaming separate: inclusive EU roaming often needs a separate uplift
Strength: Urban coverage, Vodafone One enterprise integration

O2 Business

Standard plans: Inclusive EU roaming as "Roam at Home" is standard
EU calls from UK: Less commonly inclusive on standard tariffs; some plans include inclusive calls to EU destinations
Strength: Roam at Home is best-in-class; coverage decent in urban and EU roaming abroad

Three Business

Standard plans: Mixed — some legacy plans included wide international, newer plans charge
Check specifics: varies substantially by plan
Strength: Data-heavy plans at competitive pricing

CTN Business

All tariffs include EU calls — 200, 500 or unlimited international minutes per month to 39 destinations (all EEA plus USA/Canada)
Plus inclusive roaming in 83 destinations
Strength: Both-direction EU coverage (calls from UK + roaming when abroad) as standard, not as bolt-on

Side-by-side for a typical 10-person team

Assumption: 10 staff, moderate EU usage (average 30 international minutes/user/month + occasional travel), 36-month term.

Provider	Monthly per user (indicative)	EU calls	EU roaming	Likely annual cost (10 users)
EE Business (standard)	~£22	Pay per minute	Daily fee ~£2-5/day	£22/user × 10 + ~£300 int calls + £400 roaming = £3,340
Vodafone Business	~£22	Pay per minute	Daily fee	Similar to above ~£3,200-3,500
O2 Business	~£24	Pay per minute	Roam at Home (inclusive)	£24/user × 10 + £250 int calls = £3,130
Three Business	~£20	Mixed	Mixed	~£2,800-3,200 depending on plan
CTN Business (50GB/500 int)	~£26	Inclusive (500 min)	Inclusive (83 countries)	£26 × 10 × 12 = £3,120

Notes:

CTN's figure is all-in — no surprise roaming or international call charges
The other figures depend heavily on actual usage; low-usage months will undershoot, high-usage months will overshoot substantially
"Per user" prices are indicative for a 10-user business on a 36-month term with a similar spec handset; your actual quote will vary

Which suits which business

Heavy international callers (50+ mins/user/day)

CTN 100GB / unlimited international — no call-volume risk
Or EE/Vodafone with a specifically negotiated unlimited-international add-on (often possible at enterprise level, rarely on standard SMB plans)

Moderate travellers, low EU calling

O2 Business — Roam at Home covers the travel; international calls are rare so per-minute is tolerable
Or CTN 25GB / 200 international — cheaper if call volume is genuinely low

Heavy EU travellers, low EU calling (e.g. sales teams on the road)

O2 Business — Roam at Home is genuinely good
CTN 50GB / 500 international — matches O2 for roaming, has wider country list (83 vs O2's ~48)

Mixed teams (some heavy callers, some not)

CTN — mix tiers across the team (100GB for heavy, 25GB for light); one account, one invoice
Vodafone Business enterprise can do mixed tiers too, but usually needs an account manager fight

Non-EU calling (China, India, Middle East)

None of the above include these in standard bundles
Add-on bolt-ons from any provider (£5-15/month for specific country groups)
Or use a separate VoIP account for non-EU international; mobile for EU

The fair-use traps to watch for

Before committing to any "inclusive EU" business plan, check:

Data cap on inclusive roaming — most are 20-40GB/month in EU; beyond that, throttling or charges
Country list specifics — Switzerland, Turkey, and former Yugoslav states often excluded
Calling vs roaming distinction — "inclusive EU" often means roaming, not calls from UK
Contract term and price locks — 12-month contracts reprice at renewal; 36-month terms lock in
Annual RPI / CPI increase clauses — OFCOM banned CPI-linked increases from 2025 (must be in £ and pence). Check the actual £/month increase on paper

CTN's tariffs specify annual increases of £2.50 + VAT per month each April, in writing. Some other providers still try CPI-linked terms despite the OFCOM rule change.

Our recommendation

If you're a small-to-medium UK business that calls the EU regularly: the realistic comparison is O2 Business (for the roaming) vs CTN (for the combined inclusive calls + roaming). If you need calls-from-UK to EU as a standard inclusive benefit, CTN is usually the simpler answer; if you mostly care about roaming when travelling, O2 Business works too.

If you're an enterprise with specialist international requirements (Asia, MENA, Latin America): none of the standard UK business tariffs are built for you. Custom enterprise plans from Vodafone Business Global Enterprise or similar, or international telecoms specialists, fit better.

Getting a quote

Call 01743 598025 or request a quote. Send your last three bills — we'll audit roaming and international spend, quote against CTN's tariffs, and tell you honestly whether we beat what you've got.