Gamma Reviews 

Migrating numbers between clients and products can sometimes be cumbersome and/or complicated but with the Gamma portal, this process has been made easy and depending on what is being migrated, it is automated, without having to speak to anyone. Very efficient and prompt service

Poor Customer Service.

When things go wrong these guys don't react well and are rigid.

The renewal of the contract was straightforward and simple.

Great phone coverage wherever i go and also first class customer service. What more could you need!

Gamma are a company who are wonderful to do business with; first class products and services, competitively priced, a quality team who are a pleasure to work with - here's to many more years of successful partnership!

Fantastic company, lovely offices, lunch was provided and the training was fun and laid back always, love to visit the Gamma offices and meet everyone.

Gamma Telecom has been an outstanding partner for Comm-Tech Voice and Data, consistently delivering quality and reliability across all aspects of their service.

Their innovative solutions and robust infrastructure have been instrumental in supporting our growth and helping us provide top-tier communication services to our clients. Gamma's commitment to excellence and customer-centric approach align perfectly with our own values, making our partnership seamless and productive.

The team at Gamma is highly responsive and professional, always going above and beyond to address our needs and adapt to the evolving demands of the market. We truly value our relationship with Gamma Telecom and look forward to continued success together.

Highly recommended for any business seeking a reliable telecom provider!

Tim, Operations Director at Comm-Tech

The people at Gamma are sound as, incredibly knowledgeable, helpful and know how to have fun! They strive to support opportunities in every possible way.

The staff at Gamma are fantastic, you just can't fault them. I genuinely look forward to calling in. There a multitude of telecoms suppliers in the market but if you want a dedicated, helpful team that you can rely on then I'd thoroughly recommend Gamma! Always easy to work with.

Another person subject to Indian caller purporting to be from Virgin/O2 using your number / 02039597785
I have blocked them. Sorry your company is being subject to these scammers.

Having been a customer for many years, we cancelled at the start of this year. This company continued to take direct debits, without authority.

After we cancelled the DD the credit control team started chasing us, despite agreeing they owed us money.

Getting a refund is proving nigh on impossible, with them constantly requesting our bank details, amd the latest ruse being to ignore a company name change and insisting we have an account in the old company name, which would be illegal.

They were happy to take our money but don't want to return what they have basically stolen from us.

Avoid this company - absolutely not to be trusted.

Gamma Group's website fails to impress from the moment you land on its homepage. The design feels like a relic from a bygone era, with a cluttered layout and a color scheme that lacks vibrancy and modern appeal. Navigation is particularly problematic, with confusing menus and a lack of clear organization that makes finding specific information a daunting task.

02079937125 02038723455 02079937122 02045240557 02045240602 02081295715 I have had all these numbers calling me in the last 2 days. Indians trying to scam me. This is becomming very annoying whith weekly calls from Gamma telecom. Can you please report this, I know its not your companies fault but why do they find it easy to get your numbers to scam people.

I contacted Gamma and they investigated the number involved in scams and suspended the number I ask that you contact Gamma for investigation and concerns

Lock you into a contract that they auto-renew and lie about the dates.. Don't Sign!

We use gamma for our work phones and I have never come across a service so bad. It only works off a 4G network so unless I am connected to WiFi it is more or less useless. Was surprised to read the company have been around for 20 years 🤔. Taking ppls money that long for a bad service

UPDATE 18 Jan 2024:
I have had a response from Gamma after completing their online "nuisance call" form. I understand better now that Gamma are a wholesaler and it is their resellers who supply individual customers with numbers.

Gamma informed me that they needed to contact the reseller, and the reseller in turn has today confirmed they have blocked the numbers I reported.

The service was quick and I was kept informed. I can't ask for more than that, so have updated my review and my rating to 5 stars.

Previously I reviewed to say I am receiving calls from numbers that are, according to the "who called me' site who-called.co.uk are operated by Gamma. I am completing the nuisance forms, but shocking if Gamma are legit themselves how they seem to be a favourite of crooks and scammers, and they should smarten up their act.

I inquired as a company and have called and emailed them twice a week for over five weeks to get a quote or to somehow move ahead. This is for a larger server project - ZERO and just shrugging their side. How you would treat a serious business inquiry so utterly unprofessional is beyond me and an absolute shame.

EDIT: yes, I do have the contacts, of course but I do not think you can or should post them here on Trustpilot. Your reply to my review should have included some means of contact for me as it is otherwise just as useless and empty as everything else experienced so far.

We use Gamma Horizon hosted phone system through a third party telecoms company.

To sum up: It's a reliable, reasonably priced telecoms solution that is COMPLETELY RUINED buy an interface that appears to have been written by a student at the last minute for their school IT project on Sunday with a hangover.

As the company IT admin, I get to hear from everyone, from the directors down to the lowest office bod, just how damned frustrating this thing is to use.

On a positive note; we have a good data connection and calls are clear, reliable, connect almost instantly and here ends the positive note.

When trying to dial, you can only search on the contact surname, so the first name is basically redundant but...
YOU CAN'T LEAVE IT BLANK. Ok, so you put a dot in first name and put the full name in the surname..? NOPE! No spaces or underscores (or any non-alphanumeric character) allowed (and even if they were the fields aren't long enough).

If you have 20 contacts with the surname Marsh, Martin, Marion, Marwell, etc, you're going to do a LOT of scrolling because the search on handsets ignores everything after the first 3 characters.

Ok... So maybe we use the screen buttons for quick dials to frequently used contacts..?
NOPE! You can only assign other users or call functions, no external numbers.

Getting desperate now... We can use quick dials..? Oh yes! 2-digit dialling! We'll have to use a old-fashioned paper list, but it's workable.
NOPE! It doesn't work. Single digit dialling does, which is great if you only have 9 contacts. Spoiler.. NO ONE HAS THAT FEW CONTACTS.

The mobile app isn't too bad, the contacts search seems to work better, but it will also search your personal contacts if you're using your own mobile and there's no voice search. However, if there's a way to transfer calls, I haven't found it.

The browser interface is woeful, many things you're never going to use and still no quick-dial support for your contacts or facility to pin them in a menu. The search is better but still hit-and-miss.

So we live with the weird database and we've managed to make a call, we want to transfer it.
NO COLD TRANFERS.
You can't simply push function button for the user you want to send the call to. Oh no! you must hit [Transfer] (pick one as despite having a dedicated key you'll also see at least one soft key option) then the users softkey, wait for their phone to ring, then press [Transfer] again, wait for the "Transfer Complete" message, THEN you can hang up.

The main line rings and everyone is busy, but you're not on the ring group... You'd think you could pick it up by pressing the flashing line button, wouldn't you? We did... Well YOU CAN'T. In fact there's no way for you to answer it at all.

You're alone in the office, everyone's in a meeting and you're on a call; the main line rings (you're on the ring group and could pick up if you weren't in a call) so you quickly finish your call and hang up, you go to answer the other call, but your phone isn't ringing, pushing the main line softkey does nothing. You have to go LOG INTO ANOTHER PHONE to answer it then transfer it to yourself.

Honestly there's more, so much more, but I'm not sure what the character limit is here, so I'm going to stop now.

If you're the SysAdmin, the backend is actually quite good, the interface is from the year 2000, but it does what it needs to and things are (fairly) intuitively laid out.

In summary, until Gamma get's off it's collective backside and writes a professional, competent and elegant front end to go with their undoubtedly competent backend systems, avoid this like a damp spot on a train seat.