VoIPninjas vs Gamma: Which Is Right for Your Business?

Gamma Telecom is one of the better-known names in UK business communications. VoIPninjas is a direct provider based in Christchurch, Dorset. They operate on different models and target slightly different kinds of buyer. This guide looks at both honestly so you can decide which fits your situation.

What Is Gamma Telecom?

Gamma was founded in 2000 and is listed on AIM, the London Stock Exchange's growth market. It provides hosted voice, SIP trunking, mobile, and broadband to UK businesses. It is a UK-built company, operating on UK infrastructure, with a genuine track record in the market.

Its flagship product for small and mid-sized businesses is Horizon, a cloud-hosted PBX that sits at the UCaaS end of the market. Horizon includes auto-attendant, call recording, ring groups, voicemail-to-email, a mobile app, and a range of CRM integration options. It has been in the market long enough to be a mature platform. This is not a beta product or a first attempt at a phone system — it is an established piece of UK business communications infrastructure.

Gamma also offers SIP trunking for businesses running their own on-premise phone systems, and it has a mobile product. But for most businesses comparing Gamma against alternatives, Horizon is the product in question.

How Gamma Sells: The Reseller Channel

This is the part that catches some businesses off guard, and it is worth understanding before you go any further.

Gamma does not, for the most part, sell Horizon directly to end-user businesses. It operates a channel model. Most businesses using Horizon are customers of a reseller — a third-party company that buys access to Horizon from Gamma and sells it on under its own pricing and terms.

Your day-to-day relationship is with the reseller, not with Gamma. Support calls go to the reseller. Pricing is set by the reseller. How your account is configured, how quickly issues are resolved, and how your contract is structured — all of that is the reseller's responsibility, not Gamma's.

This model can work very well. There are many competent, well-run Gamma resellers across the UK who provide a genuinely good service. The problem is that you cannot tell which kind of reseller you have until you are already a customer. If your reseller is slow to respond, poorly staffed, or goes through a period of instability, Gamma itself is not your point of contact. You are one step removed from the company whose name is on the product.

Gamma Horizon: What It Actually Offers

Horizon is a capable hosted phone system with a feature set that suits most UK businesses. Core features include:

• Cloud-hosted PBX with no on-premise hardware required
• Auto-attendant (digital receptionist / IVR)
• Call recording
• Ring groups and hunt groups
• Voicemail-to-email
• Mobile app for iOS and Android
• CRM integration options, which vary by reseller configuration

For businesses with multiple sites, complex call routing requirements, or a need for CRM integration, Horizon has the depth to handle it. It is not a lightweight product. If your business needs something with real configurability and you have a reseller who knows how to set it up and support it properly, Horizon can do the job.

An Honest Assessment of Gamma

Gamma is a legitimate UK business with a real product. The platform is well-established, UK-based, and widely used. Many businesses rely on it year after year without issue.

The weaknesses are structural rather than technical.

The reseller layer means your experience is almost entirely shaped by a third party. If your reseller is good, Gamma Horizon works well. If your reseller is not, you have limited direct recourse with Gamma itself. That is not unique to Gamma — it is common across the channel model — but it is worth knowing before you sign anything.

Contract terms are another factor. Horizon through a reseller is almost always sold on 12 or 24-month contracts. Some resellers will offer shorter terms, usually at a higher price. For businesses that are growing, contracting, or simply prefer not to commit to a multi-year arrangement, that lock-in has real consequences.

Pricing is also opaque. Gamma does not publish Horizon retail prices. Your reseller sets them. You need to go through a sales conversation before you know what you will pay. That makes genuine cost comparison difficult.

None of this makes Gamma a poor choice. It means your experience depends heavily on who you buy it from.

What VoIPninjas Does Differently

VoIPninjas is a direct UK VoIP provider. There is no reseller channel. You buy from VoIPninjas. You talk to VoIPninjas. Support goes to VoIPninjas directly. Pricing is published on the website before you make any commitment.

The company is based in Christchurch, Dorset. All plans are 28-day rolling — there is no annual contract on any plan.

Three plans are available:

Ronin — £5.99 per user per month 100 included UK minutes, 28-day rolling. For sole traders or individuals who need a professional business number without paying for features they will not use.

Samurai — £14.99 per user per month 750 included UK minutes, call recording, auto-attendant, ring groups, DDI, voicemail-to-email, and a mobile app. 28-day rolling. The plan most small businesses start on.

Shogun — £24.99 per user per month Everything in Samurai, plus unlimited UK calls and calls to 55 countries. 28-day rolling. For teams with high call volumes or regular international requirements.

Pricing Comparison

Gamma Horizon pricing is not published. It is set by your reseller and varies between partners. Without going through a sales process, you cannot know what you will pay. That is how the channel model works, and it is not inherently unfair — but it does make direct cost comparison difficult.

VoIPninjas pricing is fixed and public:

• Ronin: £5.99/user/month
• Samurai: £14.99/user/month
• Shogun: £24.99/user/month

All plans are 28-day rolling. There are no hidden setup fees.

Contract Terms

Horizon through a reseller is typically sold on 12 or 24-month contracts. Exiting early usually means paying out the remainder of the term, or negotiating an exit fee with your reseller.

VoIPninjas operates on 28-day rolling terms across all plans. You can leave with 28 days' notice. There is no minimum term beyond the first billing period.

For businesses that are uncertain about headcount, planning a move, or going through any kind of change, that flexibility is not a minor detail. It is the difference between being able to adapt quickly and being locked into a cost structure you can no longer justify.

Who Should Choose Gamma Horizon?

• Businesses that already have an established relationship with a trusted, responsive Gamma reseller
• Businesses that need deep CRM integration or complex multi-site configuration and have a reseller with the expertise to deliver it
• Businesses already on Horizon that are satisfied with how their reseller handles support and account management
• Businesses that want a mature, UK-built UCaaS platform and are comfortable committing to a 12 or 24-month term

If you have a good reseller and Horizon is working well for you, there is no strong reason to move.

Who Should Choose VoIPninjas?

• Businesses that want to buy direct, with no reseller between them and their provider
• Businesses that want published pricing before they enter any sales conversation
• Businesses that cannot commit to a 12 or 24-month contract
• Businesses that have had a poor experience with a reseller and want to own the support relationship themselves
• Smaller businesses that need professional VoIP features — call recording, auto-attendant, ring groups — without enterprise-level complexity or pricing
• Businesses that need to get moving quickly — most VoIPninjas customers are live within 10 working days

Start your free 14-day trial — no card required. VoIPninjas is a direct UK VoIP provider based in Christchurch, Dorset. No resellers, no middlemen, no contracts. Plans from £5.99 per user per month on 28-day rolling terms. Most businesses are live within 10 working days. Call us on 0330 043 2388 or go to voipninjas.co.uk/get-started/ to get started.

Frequently Asked Questions

Is Gamma Horizon the same as VoIPninjas?

No. Gamma Horizon is a cloud-hosted PBX sold through Gamma's reseller channel. VoIPninjas is a direct provider — you buy and manage your service without a reseller in the middle. The products overlap in features, but the purchasing model, the support relationship, and the contract terms are different.

Can I switch from Gamma to VoIPninjas?

Yes. If you are not in a contract, or your contract term has ended, you can port your existing number to VoIPninjas and move your service across. If you are mid-contract, check your exit terms with your reseller before making any decisions. Early exit fees vary between resellers.

Does Gamma sell directly to businesses?

Gamma sells some products directly, but Horizon — its hosted PBX — is sold primarily through its reseller channel. Most businesses using Horizon are customers of a third-party reseller, not of Gamma itself. Gamma is the platform provider; your reseller is your actual service provider.

What happens to my number if I leave Gamma?

Your UK phone number can be ported to a new provider. Number portability in the UK is a regulated process, so your reseller cannot prevent you from taking your number with you. You will need to request the relevant porting authorisation code from your reseller and provide it to VoIPninjas as part of the switch. Most ports complete within a few working days once the paperwork is in order.