Ask most business owners what phone system they’re on and you’ll often hear the same answer: “Gamma.” Said the way you might name a single product, a single choice already made. In reality, Gamma isn’t one system. It’s a portfolio of telephony and connectivity products, each built for a different kind of business. And the businesses that end up on the wrong one usually aren’t making a bad decision, they’re simply never offered the choice in the first place.
Gamma is a portfolio, not a single product
Most conversations about business telephony treat “Gamma” as shorthand for one particular system. It’s an easy assumption to make, and most providers don’t go out of their way to correct it, especially if they only sell one product from the range. The reality is that Gamma powers several distinct solutions, built around different business situations: how much existing hardware you have, how your teams work, and how many sites you operate from. Getting the fit right matters more than most businesses realise.
Horizon: cloud PBX for businesses ready to leave hardware behind
Horizon is Gamma’s fully hosted, cloud-based phone system. There’s no on-site PBX hardware to install or maintain, calls are managed entirely in the cloud, and staff can make and receive calls through desktop and mobile apps as easily as through a desk handset.
This tends to suit businesses replacing an ageing legacy system, opening a new site without wanting to invest in physical infrastructure, or simply wanting the flexibility that comes with a fully cloud-based model. Scaling up or down as headcount changes is straightforward, with no hardware constraints to work around.
SIP trunking: for businesses that want to keep what they’ve already invested in
SIP trunking takes a different approach. Rather than replacing your existing on-site phone system, it connects it to Gamma’s network, replacing the ageing PSTN or ISDN lines that carry your calls today.
For businesses that have recently invested in phone hardware, or simply don’t want the disruption of a full system replacement, this is often the more sensible route. It’s also a particularly relevant option for businesses working through their PSTN switch-off migration, since it addresses the underlying connectivity issue without requiring a wholesale change to how staff use their phones day to day.
Mobile-first: for teams who are never at a desk
The third option is built around a different assumption entirely: that calls should follow the person, not a fixed handset.
Mobile-first telephony suits field-based teams, businesses operating across multiple sites, or any organisation where a significant proportion of staff are rarely, if ever, sat at a desk. It removes the dependency on physical hardware altogether, and lets staff manage business calls from wherever they’re working.
Why the wrong fit costs more than people expect
The cost of choosing the wrong product isn’t always obvious straight away, but it adds up.
A hardware-light business paying for a full cloud PBX system may be paying for features it never uses. A business that genuinely needed a full system replacement, forced instead onto SIP trunking to save disruption, may find itself back at the same decision within a couple of years. A distributed, mobile workforce locked into a desk-based system will quietly work around it, rather than through it.
None of these are dramatic failures. They’re just a mismatch between the product and the business it’s serving, and mismatches like that tend to cost time and patience rather than showing up as a single obvious expense.
How to work out which product is right for you
A few honest questions go a long way here.
What does your current hardware situation actually look like, and how recently was it invested in? How many sites do you operate from, and how distributed is your team day to day? Where are you on your PSTN switch-off timeline, and how much disruption can you realistically absorb right now? And finally, is a full migration something you want, or would a lighter-touch transition serve the business just as well?
The answers to these questions point fairly clearly towards one product over the others. The difficulty is that most businesses never get asked them.
How 4th Platform helps
At 4th Platform, we work across the full Gamma range rather than defaulting to a single product. That means the recommendation we make starts with an honest look at your business, your hardware, your teams and your timeline, not with a fixed sales target we’re working towards.
We also manage the migration end to end, whichever product turns out to be the right fit, so the transition is as smooth as the product choice itself.
If you’re not sure whether you’re on the right Gamma product, or you’re weighing up options for the first time, it’s worth having that conversation before committing to anything.
Talk to 4th Platform about which Gamma product actually fits your business ->
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