UK Roaming SIM

Unrivalled coverage across all UK networks

OptiSIM Connectivity.

OptiSIM provides the most extensive mobile coverage in the UK. The service is delivered through a roaming agreement with all three major UK operators (O2, Vodafone, and EE). The special SIM card accesses an alternative network signal, should the primary network be unavailable for any reason, to ensure connectivity.

OptiSIM is available as a Voice, Voice & Data and Data-only solutions.

Connected globe

Network redundancy for business continuity planning

SIM card

No specialised equipment necessary - just a SIM card

Downloading data

Cost effective data bundles

Business Continuity.

This service is invaluable whenever a network signal is unavailable. This could be due to temporary network problems, topography, or other obstacles affecting reception.

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.


IoT Connectivity by Cellhire

Cellhire transforms businesses with intelligent IoT SIM & eSIM solutions. Businesses can take advantage of a range of different levels of connectivity accessible worldwide.

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