Skip to content

PBX Systems

Modern PBX Architecture

Private Branch Exchange (PBX) systems have evolved from traditional hardware to software-based solutions.

Types of PBX Systems

Traditional PBX

Hardware-based systems using analog or digital phone lines.

IP-PBX

Internet Protocol-based systems that use VoIP technology.

Hosted/Cloud PBX

Cloud-based services eliminating on-premise hardware.

Hybrid PBX

Combination of on-premise and cloud components.

Key Features

Call Management

  • Auto-attendant
  • Call forwarding and transfer
  • Hunt groups
  • Call queuing
  • Conference bridges

Advanced Features

  • Unified messaging
  • Call recording
  • Interactive Voice Response (IVR)
  • Integration with CRM systems
  • Mobile extensions

Open Source

  • Asterisk - Most widely used open-source PBX
  • FreeSWITCH - Scalable soft-switch platform
  • FusionPBX - FreeSWITCH-based GUI solution

Commercial

  • Cisco CallManager - Enterprise solution
  • Avaya IP Office - Small to large business
  • 3CX - Windows/Linux based system