What is VoIP (Voice over Internet Protocol)?

VoIP (Voice over Internet Protocol) is technology that carries telephone calls as data over an internet connection instead of over a traditional copper phone line.

For UK businesses, VoIP replaces the analogue PSTN that BT Openreach retires on 31 January 2027. Silux Call is a hosted VoIP service: you keep your UK numbers and gain an app on every device, IVR, hunt groups and AI call handling.

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