Established in 1987
OptiSIM provides the most extensive mobile coverage in the UK. Through a roaming agreement with all four major UK operators, this special SIM card accesses an alternative network signal, should the primary network be unavailable for any reason, to ensure connectivity. OptiSIM is ideal for any organisation that needs to stay connected 24/7, such as the Emergency Services, Emergency planners, Utilities and the Security Services. In the private sector, board members and crisis critical personnel, as well as employees operating in remote locations could benefit significantly from OptiSIM.
Keep employees connected abroad with Cellhire’s international SIM cards. Cellhire provides secure, fast, cost effective mobile connectivity for businesses travelling around the world.