"We have worked with Chris since 2013... I have worked with a few different providers over the years, but of them Chris would easily have the best understanding of Avaya systems and how to make it work for our business and our IT infrastructure, as well as building a great working relationship with our external IT support. He has been happy to impart his knowledge to our team to allow us to develop the expertise inhouse to handle many of day to day tasks, but always knowing Chris will be there for us to back us up when required."

"Multiple Sclerosis Auckland has been using Chris Lang and Sweep as our internet service provider and our Avaya VoIP phone supplier since 2012. We are extremely satisfied customers!  

"We have always found Chris and the team at Sweep to go above and beyond the call of duty for a charity like ours as I'm sure he does for all his customers."

"I first met Chris about 15 years ago when he installed and setup out Avaya phone system in our business. This revolutionised our telecommunications at the time with IP phones that slashed our costs by at least 50%.

"I can say from our first meeting way back then that I realised Chris's talents were something that you don't see often, and that he always has exceeded my expectations. His knowledge of anything to do with Telecommunications/ Network engineering is second to none."