PBX on Raspberry Pi Zero

PBX on Raspberry Pi Zero has much small size, some stores offer just 5 dollars as promotion.

However it doesn’t come with Ethernet port, so USB to Etherneter adapter would be a solution.

You have to get micro USB to USB-A adapter first because Raspberry Pi Zero just has micro USB ports

Raspberry Pi Zero W recommended

Raspberry Pi Zero has two models: Raspberry Pi Zero and Raspberry Pi Zero W. W comes with wireless connection and better performance.

PBX on Raspberry Pi Zero — Raspberry Pi Zero as PBX

Micro USB to USB-A adapter:

Micro USB to USB-A for PBX on Raspberry Pi Zero — Micro USB to USB-A adapter

USB 2.0 to Ethernet adapter

Raspberry Pi Zero only with USB2.0, so just spend 3-4 dollars to get USB2.0 to Ethernet adapter from Ebay.

However, the speed of USB2.0 to Ethernet adapt is very slow: less than 500KB/s to transfer data. You can spend more to get USB3.0 to Ethernet adapter even the port on Raspberry Pi Zero is USB2.0. The speed around 10-20MB/s, which is much better than the cheap USB2.0 to Ethernet adapter.

Install Procedure:

Get a 16GB or 32GB micro SD
Download image file of Raspiberry Pi OS
Write image file to one microSD card by disk writer, like Raspiberry one Imager ( download from Raspberry Pi official website)
Creat a blank txt file on boot partition and rename as “SSH” in order to enable SSH service
Insert SD card to Raspberry Pi and power on it.
SSH by user: pi with default password: raspberry, then enable root login and SSH by root
Follow the official tutorial for FreebPBX on Debian

Install FreePBX 15 on Debian 9.6

SD card for Raspberry Pi

Raspberry Pi 3/4 is powerful enough for small office.

As SD card has limited times for writing/Reading, we recommend to cost a little more to buy Endurance Cards of Samsung or Sandisk for formal uses (office).

PBX on Raspberry Pi Zero