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Business Telecoms Providers UK: The Complete Switching Guide

Business Telecoms Providers UK: The Complete Switching Guide

If you are with one of the providers below and looking to switch, the guides on this page tell you exactly how. What notice you need to give. What your early termination fees should look like. Where to complain if you have been mis-sold. How to move your numbers across without losing service.

We are Compare The Networks. Since 2008 we have helped UK businesses move provider. We are regulated by OFCOM, rated 4.3 out of 5 on Trustpilot from over 1,000 verified reviews, and the comparison is free. The networks pay us, not you.

Get a free quote and we will tell you what you should be paying, what your exit will cost, and which network actually covers your postcodes best.

Onecom

The UK's largest independent business telecoms reseller, primarily reselling Vodafone. There is a Facebook group called "Onecom problems & mis-sold contracts" with over 1,400 members. On Trustpilot the most common complaints are around 36-month contracts where the discounted period ends after 17 to 18 months, no cooling-off period on B2B sales, and difficulty cancelling.

4Com

Bournemouth-based phone-system reseller, subject of a 2024 BBC undercover investigation that documented salespeople misrepresenting contract terms, equipment ownership and price stability. Typical 4Com contracts are 5 to 7 years bundled with an equipment lease, which is what makes the exit so expensive.

Daisy Communications

Part of Daisy Group, one of the largest B2B telecoms providers in the UK. Most exit complaints centre on automatic renewals, 90-day notice periods and post-cancellation billing — all of which can be challenged via the Communications Ombudsman.

Chess Telecom (Chess ICT)

Alderley Edge-based reseller specialising in voice, broadband and IT for SMEs. The most common complaint is contract length — 3-year and 5-year terms that customers say they did not realise they had signed, plus aggressive post-cancellation billing.

Hosted.co.uk

Whiteley-based VoIP and connectivity reseller. Most complaints involve 60-month contracts customers say they did not realise they were signing, and "free" equipment that turns out to be on a long lease attached to the deal.

Focus Group

Shoreham-based provider that has grown rapidly through acquisitions, which means many of their customers were originally signed by a smaller reseller and migrated across. Common complaints involve billing errors, slow ticket response and contracts inherited from acquired companies.

HiHi (4Com handsets)

HiHi is the in-house handset and phone-system brand pushed by 4Com. If you are on a HiHi contract you are effectively on a 4Com finance lease. The exit process and mis-selling routes are the same as 4Com.

Ice Comms

Crewe-based reseller (Ice Telecommunications Limited) selling business mobile, broadband, hosted VoIP and energy. The complaint shape on Trustpilot, MoneySavingExpert and JustAnswer centres on in-call signing pressure, large gaps between quoted price and invoiced price, and four-figure termination quotes. Their published complaints code refers customers to Ombudsman Services but the Communications Ombudsman states Ice Comms is not a member — CISAS is the correct ADR route.

Associated Telecom

Telford-based BT-authorised supplier and EE-approved stockist. Most reviews are positive — Associated Telecom is one of the better-reviewed resellers in the UK. The commercial argument for switching is simpler: as a reseller of BT and EE business products, customers can normally go direct to BT or EE for the same products at similar or lower price and skip the reseller markup.

Prestige Telecom

Gosport-based provider (Prestige Telecom Group), founded 2014. Resells O2 connectivity via plan.com on standard 36-month business contracts. Has a large positive Trustpilot review volume but a substantive complaint pattern on MoneySavingExpert, JustAnswer and Reviews.io covering cold-call openings that customers say implied the rep was from O2/EE/Vodafone, no-cooling-off-period not clearly disclosed, four-figure exit bills, and buyout payments delayed or incomplete. ADR scheme is the Communications Ombudsman.

Green Telecom

Chesham-based provider (Green Telecom Limited, est. 1989), known publicly for their carbon-positive credentials and BT Openreach approved status. The Google Business Profile rating sits at 3.8 out of 5 from 27 reviews — a split picture. 5-star reviews praise individual account managers and engineers; 1-star reviews describe post-cancellation billing for months after exit, leased-line installs running 110–130 days late and delivering far below the contracted speed, retention pressure including what one reviewer characterised as a "phony collection agency" used around exit fees, and no weekend support. ADR scheme is the Communications Ombudsman.

Other providers we cover

If you are with one of the providers below, we have a focused review and switching guide for you too.

Not on this list?

If you are with a provider we have not written about — BT Business, TalkTalk Business, Vodafone Business Direct, 8x8, Vonage, anyone — the process is broadly the same. Tell us who you are with, what you are paying, and how long you have got left. We will quote you a like-for-like replacement on EE, O2, Vodafone or Three and tell you exactly what your exit will cost.

Get a free quote.

How we can help

We compare deals across all four UK networks (EE, Vodafone, O2 and Three), check coverage at every postcode where your team works, and present you with options. If you are mid-contract, our Switching Promise covers agreed early termination fees so the new network effectively buys you out. Terms apply.

The comparison is free. The networks pay us, not you. You pay the same as going direct, or less.

Frequently Asked Questions

Can I leave my business telecoms provider mid-contract?

Yes, but you will normally pay an early termination fee equal to the remaining months of line rental. If you believe the contract was mis-sold (the salesperson misrepresented the terms, contract length or pricing) you can challenge it through the provider's complaints procedure and escalate to CISAS or the Communications Ombudsman free of charge.

Why don't business contracts have a cooling-off period?

Cooling-off periods only apply to consumer contracts. B2B telecoms contracts in the UK have no statutory cooling-off period, which is why providers chase business customers — there is no 14-day rule to back out. This is also why the salesperson's behaviour during the original call matters: if material terms were misrepresented, you have grounds to challenge.

How do I keep my business numbers when switching?

Request a PAC code (for mobile) or a porting authorisation (for landline/VoIP) from your current provider. They must supply it within one working day under Ofcom rules. Give the code to your new provider — your numbers transfer with you, usually within 1 to 3 working days.

Will Compare The Networks try to sign me up to the same kind of long contract?

All our contracts are 24 months. We do not do 36, 60, or 84-month deals like some resellers — those long terms exist primarily to recover handset and equipment costs over a longer period.

Is the comparison really free?

Yes. The networks pay us a commission for new business. You pay the same as going direct, often less. There is no charge to compare and no obligation to switch.

Ready to switch?

Get a free quote — 10 minutes, free, no obligation. We will check coverage at your postcodes, compare EE, Vodafone, O2 and Three, and tell you exactly what your switch will cost (and save you).

About this article. Claims reported here are attributed to public reviews on Trustpilot and similar platforms. They represent the opinions of the reviewers cited, not statements of fact by Compare The Networks. Brands named may dispute these claims. If you are a brand representative who believes any content requires correction, please contact us.

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