01268 495555

Current Offers

Winter Double Deal… Samsung Galaxy S8 AND get a free 8″ Android Tablet both for £53/month*

 £53 a month* includes;

  • Free Samsung Galaxy S8 smartphone with 12GB Data a month
  • Free 8″ Android Tablet
  • Unlimited minutes
  • Unlimited textsSamsung Galaxy S8

The S8 is another great, versatile Android handset from Samsung featuring a 64GB memory, 5.8inch touchscreen, iris scanner & fingerprint sensor, fast charge battery & wireless charge, 12MP & 8MP cameras, video, NFC, HTML5 browser and loads more!

*Plus VAT. £53 based on ADSI Refresh; £33 billed by O2 and £20 billed by ADSI. New connection or Port. 24 month contract with O2 Business, subject to credit check. Terms and conditions apply. Handset subject to stock availability, offer may be withdrawn at any time. FREE Tablet will be a minimum 8” android model subject to availability – ask for details.

New Samsung Galaxy J3 only £15.50/month*

 £15.50 a month* includes;

  • Free Samsung Galaxy J3 handset
  • Unlimited minutes
  • Unlimited texts
  • 2GB data a monthJ3

The versatile J3 boasts an amazing 5” screen with HD display to bring a vivid viewing experience whilst still being slim and compact. This great Android smartphone features 8gb memory, 8MP & 5MP cameras, video, HTML5 browser, Wi-Fi, Bluetooth, GPS, FM Radio, longer battery power and so much more.

Chat, text, connect, listen, play and snap to your hearts content – at this price you won’t be disappointed!

 *New connection, new number only, no porting. £15.50 plus VAT based on 24 month contract with O2 Business, subject to credit check.  Terms and conditions apply, offer limited to first 200 customers only, offer subject to stock availability and may be withdrawn at any time.

NEW Apple iPhone 8 64GB just £53 / month*

£53* a month includes;iphone8

  • Free iPhone 8 64GB handset
  • Unlimited minutes
  • Unlimited texts
  • 12GB data (4G)

The iPhone 8 is  available in Silver, Space Grey or Gold

iPhone 8 is an all-glass design with A11 Bionic Chipset, Retina HD display, iOS 11, 3D Touch display, fingerprint sensor, advanced 12MP camera, wireless charging, Siri, iCloud, GPS, ApplePay and many more enhanced features…

*Plus VAT. £53 based on ADSI Refresh; £33 billed by O2 and £20 billed by ADSI. New connection or Port. 24 month contract with O2 Business, subject to credit check. Terms and conditions apply. Iphone 8 64GB subject to stock availability, offer may be withdrawn at any time.


from £69 each hour – only pay for the time you use!


You can now buy IT support in advance with no huge outlay or commitment – so when the unexpected happens you are prepared. Perfect if your business is not ready for a yearly support contract.

Buy from as little as two hours for £198 (face value £258) – each hour comes as 4 x 15mins time slots making it ideal for small issues. Once purchased each 15 minute slot is valid up to 24 months from date of issue, so the much needed help you need immediately is just a phone call away. You could use your time for urgent assistance, or save them all for a larger project – the choice is yours!

For a limited time only we are offering the following discounted options;

  • 2 Hour option £99 each (total cost £198) Remote Support only
  • 4 Hour option £89 each (total cost £356) Remote or On-Site Support
  • 8 Hour option £79 each (total cost £632) Remote or On-Site Support
  • 16 Hour option £69 each (total cost £1,104) Remote or On-Site Support

terms and conditions apply, ask for full details

ADSI VoIP from £19.95 / user / month *

Polycom VVX 410£19.95 a month includes;

  • Selected Polycom handset
  • 4000 minutes**
  • Free divert
  • Fully managed service
  • Handset mobility

ADSI VOIP is an award winning, reliable and inexpensive advanced cloud based telephone service. Our product is extremely flexible and specifically designed for small to medium businesses

*prices exclude VAT based on 60 month contract using third party access; conditions apply, offers may be withdrawn at any time. **4000 minutes include 2000 minutes to UK geographic numbers, 2000 minutes to 4 main UK mobile carriers.

Interested in one of our offers? Complete our enquiry form and we will contact you soon;

Please complete as many fields as possible!

  • “Always been very happy with ADSI from day one. We get contacted constantly by other companies but we would never leave ADSI as the service is fantastic and our Accounts Manager is brilliant – he helps with all queries and is knowledgeable, friendly and  we feel confident that he  gets us the best deal. Many companies we’ve used over the years have been in it for the money only but with ADSI we feel that they really do put the customer first, can’t praise highly enough.”

    East Durham Community Transport
  • “Our account manager makes this otherwise stressful task of the comms pain free. We receive a personalised service and he is always on hand to advise us on maximising our telecoms whilst keeping an eye on budgets, all without compromising the high level of standards we have come to expect.   Because of this we have moved all our mobile needs to ADSI which goes against normal company policy where we by principle never use a sole supplier.”

  • “ADSI provide an excellent service and value for money”.

    Southend Christian Fellowship
  • “Thanks for being the perfect comms partner over the last 13 years.”

    Jelf Group
  • “I would just like to thank you for all your help over the last couple of months. I admit that I was hesitant at first but the service level of ADSI, your professionalism and expertise has been second to none. I would not hesitate to recommend your services to other business colleagues I know. I look forward to our on-going working relationship.”

    AM World UK
  • “We are really happy with overall service from ADSI; it’s great to have someone assigned to our account that can help us with any issues. Our overall phone costs have greatly decreased and we are extremely happy with ADSI.”

    McCue Corporation
  • “We have been with ADSI for a number of years now and I wouldn’t go anywhere else. Very professional company.”

    Kevin Locke Builders
  • “I am extremely pleased that I moved our account to ADSI and would gladly recommend them. We have made considerable savings by making the move, but have also enjoyed a far better level of service. In fact the best thing about working with ADSI is having a named account manager who deals with everything about the account. “

    Association of Teachers & Lecturers
  • “My Account Manager is extremely good at alerting us to areas where we could potentially save money within our business. We are more than happy with the service we receive from ADSI & I would strongly recommend them to other individuals or businesses.”

    Trans XL
  • “We have dealt with ADSI now for approx. 5 years, and have been continuously impressed with the good old fashioned level of customer service. Not only do they keep their eye on our account to make sure it’s the best value for us and offer us great deals on new products, but the back-up is second to none. I would have no hesitation in recommending them to business colleagues. Keep up the good work!”

    Pink Scaffolding
  • “ADSI offer a personal service delivered in a very professional way.  I am very satisfied with the service and support provide by ADSI.  I am confident that when I call, my questions will be answered without delay and this is delivered at a very competitive price.  ADSI look after their customers be providing a pro-active service that will let me know if I need to make any changes to my mobile account.  I am free to concentrate on other aspects of my business because ADSI are looking the mobile accounts.”

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