3CX is a comprehensive, software-based PBX (Private Branch Exchange) system designed for businesses of all sizes. It offers a range of features including voice calling, video conferencing, live chat, and messaging, all integrated into a single platform.

🔧 System Requirements

The hardware requirements for 3CX vary based on the deployment size and environment:

• Small Deployment (Up to 10 users):
  • CPU: 2 cores
  • RAM: 2 GB
  • Storage: Minimum 32 GB SSD
  • Network: 1 Gbps LAN
• Medium Deployment (Up to 50 users):
  • CPU: 4 cores (e.g., Intel i5)
  • RAM: 4 GB
  • Storage: Minimum 64 GB SSD
  • Network: 1 Gbps LAN
• Large Deployment (100+ users):
  • CPU: 8 cores
  • RAM: 8 GB or more
  • Storage: Minimum 128 GB SSD
  • Network: 10 Gbps LAN

Note: For cloud deployments, resource requirements may vary based on the chosen hosting provider and expected call volume.

🧰 Key Features

3CX offers a robust set of features across its different editions:

• PBX Features:
  • Unlimited extensions (except in the free edition)
  • Call logging, recording, and voicemail
  • Auto-attendant and multi-level IVR
  • Ring groups and call queues
  • Busy Lamp Field (BLF) support
• Unified Communications:
  • Integrated video conferencing with screen sharing and whiteboard
  • Live chat integration for websites
  • WhatsApp, SMS, and Facebook messaging integration
  • Mobile apps for iOS and Android
  • Web client and Windows desktop app
• Call Center Features (Pro and Enterprise Editions):
  • Advanced call reporting and analytics
  • Wallboard and switchboard views
  • SLA alerting and callback options
  • Barge-in, listen-in, and whisper functionalities
  • CRM integration
• Enterprise Features (Enterprise Edition):
  • Call Flow Designer for custom call handling
  • Hot desking and scheduled backups
  • Failover support and standby licensing
  • MS Teams Direct Routing integration
  • Skill-based routing
• AI Features:
  • Voicemail transcription
  • Call transcription and analytics
  • Integration with AI services like Google Gemini and OpenAI

💼 Deployment Options

3CX can be deployed in various environments to suit different business needs:

• On-Premise: Installed on Windows or Linux servers within your organization’s infrastructure.
• Cloud-Based: Hosted on cloud platforms such as AWS, Google Cloud, or Microsoft Azure.
• Hosted by 3CX: A managed solution where 3CX handles the hosting, updates, and maintenance.

💰 Licensing and Editions

3CX offers multiple editions to cater to different business sizes and requirements:

• Free Edition: Suitable for small businesses with up to 10 users. Includes basic PBX features, video conferencing, and live chat.
• Pro Edition: Adds advanced call center features, CRM integration, and Microsoft 365 integration.
• Enterprise Edition: Includes all Pro features plus enterprise-grade functionalities like failover support, standby licensing, and advanced routing.