VoIP telephony: the essential solution for modern businesses VoIP telephony (Voice over Internet Protocol) is revolutionizing professional communication in France. Unlike traditional telephone systems, VoIP uses your Internet connection to route calls, offering unprecedented flexibility and substantial savings. What is a SIP Trunk and why do you need it? A SIP Trunk (Session Initiation Protocol) is the virtual link that connects your phone system (IPBX) to the global telephone network via the Internet. It's the modern equivalent of analog phone lines, but much more powerful. With our offers, you benefit from a free and included SIP Trunk, allowing you to manage multiple simultaneous communications according to your plan. The advantages of IP telephony for your business Cost reduction: up to 60% savings compared to traditional telephony Total mobility: work from anywhere with the same quality Scalability: add or remove lines with a few clicks Advanced features: automatic switchboard, interactive voice server, reporting... CRM integration: connect your telephony to your business tools VoIP telephony vs traditional telephony Traditional telephony relies on expensive and rigid physical infrastructure. Professional VoIP, on the other hand, leverages your existing Internet connection to offer a more economical, flexible and feature-rich solution. With the gradual end of the PSTN (Public Switched Telephone Network) in France, migrating to VoIP is no longer an option, it's a necessity. Compatible with all IPBX systems Our SIP Trunk solutions are compatible with all major IPBX systems on the market: Asterisk, 3CX, VitalPBX, FreePBX and many others. Whether you use an on-premise or cloud IPBX, integration takes just a few minutes thanks to our detailed configuration guides and dedicated technical support. HolyCloud: your trusted VoIP partner Whether you're a small business, SME or large enterprise, our cloud telephony solutions adapt to your needs. With plans from €22.90 excl. tax/month, including a SIP Trunk, calls to French landlines, and all essential features, you have a professional phone system without initial investment. Our passionate team, with 2 years of experience, is already supporting 50 companies in their transition to VoIP. Good to know: Number portability is free and guaranteed without service interruption. We handle all administrative procedures with your previous operator. Security and reliability guaranteed The security of your communications is our priority. All our VoIP services benefit from end-to-end TLS/SRTP encryption. Our infrastructure is hosted in France in ISO 27001 certified datacenters, with a guaranteed availability of 99.9%. A fraud detection system continuously monitors your account to detect any suspicious activity.