Quantity   Component name
1 × ESP-32-C6-DevKitC-1 The brains: Wi-Fi, web page, dial plan, VoIP
1 × ES8388 audio codec Phone audio in and out
2 × Silvertel AG1171 The phone line: loop current, ring, hook detect
1 × 5V DC jack Optional power supply method (or usb-c)
1 × uSD card optional
1 × BM64 bluetooth module on carrier board Needed to pair with a cell phone
1 × RJ12 phone jack for plugging in phones
1 × Various passives, headers See full BOM in the repo