Welcome to Grandstream.UK

Oak Technology supply, install, maintain and support Grandstream solutions across the UK and our staff are Grandstream Certified.
Whether you are needing a single telephone handset or have a complete project in mind just let us know and we can take care of it for you.
We can provide internet / broadband services and VOIP / SIP Trunks which work with the Grandstream products.  Click here for further details.

Grandstream delivers an entire communications solution in one powerful and easy to manage deployment. From IP Voice & Video, to IP networking, security and more.  We deliver the tools any organisation needs to be successful. All of our solutions deliver state-of-the-art features to maximize your network’s custom ability, while being optimised to seamlessly work together.

We strive to provide the best products and services at the lowest possible price but should you find a lower price elsewhere then contact us and we will do our best to at-least match it.   We can also provide a bespoke quotation for larger orders.  All of our products are UK models with UK warranty and UK leads.  Purchasing products outside of the UK or from an unauthorised reseller will likely mean that you have no warranty, support, foreign cables and won’t be able to purchase any upgrade licenses (where applicable).