C3 have been a specialist computer telephony solutions provider in Cambridge since 1990. Offering unified communications and leading-edge solutions that support mass call handling, IVR services, PCI compliant billing and value added service development. Clients include carriers, universities, public authorities and NHS Trusts. Products include multi-channel communications platforms, network messaging, conferencing, voicemail, IVR and Tier 1 PCI Compliant payment solutions