XPhone Connect from C4B is a unified communications solution for enterprises and public bodies. It combines telephony with softphone, presence, hotline management, chat, video meetings, voicemail, fax and integrations with CRM and ERP applications and Microsoft Teams. XPhone works with existing PBX systems from vendors such as Cisco, Mitel and Alcatel-Lucent, and also without a PBX. According to the vendor, release 10.1 adds a video solution that runs on-premises, and a preview of AI agents that convert hotline calls and voicemails into text.
C4B Com For Business AG is based in Germering, Germany; no parent company is named. The vendor presents XPhone as a digital-sovereignty solution: you choose whether to run it in your own data centre or in a private cloud, and according to the vendor, communications data, presence information and call content remain under your control. Where data resides therefore depends on your deployment. That matters for European organisations with strict compliance needs, such as public administrations. The vendor describes the product as fully GDPR-compliant.