A Home Made PBX

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TLDR

  • Builder documents constructing a home PBX system from scratch, covering hardware, switching logic, and call routing.

Key Takeaways

  • A home PBX (Private Branch Exchange) routes internal calls between extensions and connects to the public telephone network.
  • DIY PBX projects typically use open-source software like Asterisk or FreePBX running on low-cost hardware such as a Raspberry Pi.
  • Analog telephone adapter (ATA) hardware bridges traditional POTS handsets to VoIP SIP trunks, a common choice for home builds.
  • Running your own PBX gives full control over call routing rules, voicemail, IVR menus, and call recording without monthly subscription fees.

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