Still unsure? Sign up for 3CX FREE to test the waters. Annual licenses are valid for 12 months after which a renewal is required at the same rate. Pricing is based on the number of simultaneous calls and extensions a company needs. Usually, 1 sim. call per 3-4 extensions is required, i.e. a company with 50 extensions would need a 16 sim. call license. The 3CX Basic Edition is the no-nonsense, rock-solid VoIP phone system built for businesses that want dependable business telephony without paying for extras they don't use. It's perfect for small to mid-sized companies, schools, clinics, factories, hotels, or any operation where clear calls, intercom/paging, and simple management matter more than fancy AI, call queues, or deep CRM syncing. You get modern architecture—reliable, secure, and easy to handle—without the bloat of higher tiers. Looking for 3CX PRO Edition?Looking for 3CX AI Edition? The Telecom Spot Expert Review As a long-time 3CX partner based in Austin, we've deployed Basic Edition for dozens of clients who wanted to cut telecom costs without sacrificing call quality or reliability. It's a breath of fresh air compared to legacy PBXs—setup takes hours instead of days, web-based management is intuitive even for non-IT staff, and the security updates come automatically. Pros Significantly lower cost (~20% less than PRO Edition) for core features Rock-solid reliability and modern security (encrypted calls, regular patches) Includes essentials like intercom, paging, BLF keys, basic reports, Google/Microsoft user sync, and SSO No per-user fees—just pay for simultaneous calls you actually need Easy to manage remotely via browser; great for distributed or hybrid teams Hotel integration available (for 16+ SC) Cons No advanced call center tools (queues, wallboards, recording on demand) Lacks CRM integrations, APIs, full video conferencing extras, or AI features Multi-site bridging not included—stick to single-site or upgrade to PRO/ENT For smaller setups (