For general information about CEL-FI products, compatibility, or troubleshooting, please see our frequently asked questions.

This website is designed for commercial solutions. Please visit our sister site for self-install options.

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Frequency Signal Solutions (Frequency 3G Telecom Ltd.)
Emerald House,
East Street,
Epsom, Surrey,
KT17 1HS, United Kingdom

Tel: 0330 353 0196