Strongest Signal

Unrivalled coverage across all UK networks

OptiSIM provides the most extensive mobile coverage in the UK. The service is delivered through a roaming agreement with all three major UK operators (02, 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.

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.

Features & Benefits

Ideal as a basis of business continuity planning

No specialised equipment necessary - just a SIM card

Can be used with practically all mobile handsets

Extremely competitive call rates

Make an Enquiry

If you are interested in finding out more about Cellhire's Strongest Signal channel, please fill in the form below
Alternatively you can call us on +44 1904 610610


York (World Headquarters)

Cellhire PLC
Clifton Park
York, YO30 5PB
Tel : +44 1904 610610

Established in 1987

Net Promoter Score of 80

Multiple Global Network Partners

ISO 9001 Certified since 1994

Queens Award for International Trade in 2005

Global Offices, 80+ employees