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For modern businesses, there is no longer a good reason to continue working with an ISDN-based telecommunications solution

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Learn a bit more about Gamma

Committed to the best in customer service and support

  • 24/7 UK-based fault handling and customer service 365 days a year handled by our own staff.
  • Our support teams are co-located so you can always get through to the right person to handle your query – our teams are experts in both faults and provisioning ensuring ‘first time fix’.
  • Our teams actively participate in supplier service reviews and product implementations – so customer and technician views are always at the heart of how we manage our suppliers and our new product launches.
  • Highly trained, UK-based customer service managers for managed accounts.
  • Timely, accurate bills and a single invoice with management reports clearly showing call summaries and billing details.
  • We hold regular account reviews including services, line usage and billing to help you achieve efficiencies.
  • Simple, multi-level industry standard service scheme, providing you with the level of care you require.

An introduction to Gamma


Get to know our products that can help transform your business

gamma sip trunking

Gamma SIP Trunks connect your business with our nationwide network, giving you access to the PSTN and provides a more flexible and lower cost alternative to ISDN for inbound and outbound voice calls.

Horizon is a complete business communications service that provides an extensive range of fixed and mobile telephony capabilities via an easy-to-use web portal.

gamma mobile

Gamma Mobile is a mobile service built exclusively for the business market, designed to ensure you get the best possible coverage almost anywhere – on the train, in the car, wherever there is a signal.

As more services move into the cloud, so the need for fast, secure and reliable internet connectivity has become essential. Gamma’s Ethernet products provide highly reliable, secure and fast data connectivity.