3CX review
A broad, capacity-priced phone system for teams that need routing flexibility.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
3CX is a software-based business communications platform for organizations that need PBX calling, contact center capabilities and flexible deployment. It combines SIP trunk support, auto attendants, multi-level IVR, call queues, ring groups, call recording, reporting, voicemail transcription, video conferencing and messaging. Teams can access it through web, Windows, Linux, iOS, Android and a Chrome extension. The published positioning fits organizations that want broad PBX coverage rather than a narrowly focused calling tool, including teams that need CRM or Microsoft 365 and Google Workspace connectivity.
Pricing is based on system capacity and simultaneous calls rather than per-user billing, with annual billing per system. The free 4SC Basic edition is intended for very small deployments, while the free plan supports up to 40 users. Paid editions include Basic, Pro and AI, and the official pricing page displays a $295 annual entry price. The plan structure makes 3CX relevant for teams that want to match telephony capacity to their deployment, but buyers should evaluate simultaneous-call requirements and annual system pricing rather than comparing it directly with per-user services.
Platform and ecosystem breadth are central to the product. 3CX supports hosted, self-hosted and on-premises deployments, alongside API access and integrations with Salesforce, HubSpot, Zoho, Zendesk, Freshdesk, Microsoft 365, Google Workspace, Microsoft Teams, WhatsApp, Facebook and SMS/MMS. Its feature set also includes live chat, WhatsApp, SMS and MMS, AI features, custom call-flow design and routing scripts. Choose 3CX when PBX depth, deployment choice and integration coverage matter most. A smaller team seeking a simple phone service may find its capacity-based pricing, SIP-provider dependency and broad configuration scope less suitable.
3CX pros and cons
- Where it wins
- Free plan supports up to 40 users
- Advanced call flows, IVR, queues and routing scripts
- Broad apps, integrations, messaging and deployment options
- Where it doesn't
- Paid pricing is billed annually per system
- Free edition is limited to very small deployments
- Business numbers generally require a SIP trunk provider
3CX fact sheet, pricing and score →
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