A leading global provider of networking and communications equipment, ADTRAN offers a wide range of solutions to businesses- large or small. ADTRAN solutions are widely recognized within the telecom industry for providing solutions that are easy to deploy at a low cost of ownership. Caleidoscope is proud to offer RoHS (Restriction of the use of Harmful Substances) (http://www.rohs.gov.uk/) compliant ADTRAN hardware that is at the cutting edge of eco-friendly technology. All ADTRAN products that we offer are backed by a 5 or 10 year warranty, on top of Caleidoscope's award winning customer service and support team.