One server replaces the phone system, the meeting link, and the fax line: AiPBX turns a Linux machine into a business phone system with extensions, video meetings, chat, and call queues. Every employee gets one extension that rings a desk phone, the browser softphone, and the mobile app, while ring groups, multi-level IVRs, and time conditions route callers without anyone editing dialplan files. Queues staff your support line with dynamic agent sign-in, hold music, and position announcements, and a live wallboard lets supervisors watch waiting callers and agent states, then listen, whisper, or barge into a call. Meetings run in the browser: schedule conferences with PINs, send guests a magic link into a WebRTC room with screen sharing, and let streams forward without transcoding. Chat lives in the same portal: photos, files, presence, read receipts, and fax is composed in a rich-text editor or uploaded as PDF and delivered over T.38. Desk phones provision themselves: a discovery daemon spots new Yealink, Fanvil, Grandstream, Snom, and Cisco handsets and writes their configuration files. An AI assistant plans dialplan changes in plain language with dry-run preview and one-click undo, cloud voices from Google, Polly, Azure, ElevenLabs, or OpenAI read announcements aloud, and GDPR, KVKK, HIPAA, and PCI-DSS presets govern recording consent and retention purges. A 100-plus-endpoint REST API with scoped keys and HMAC-signed webhooks makes everything scriptable. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. MIT licensed.