Phones

Project: Phones

Introduction

A telephone is a telecommunications device that permits two or more users to conduct a conversation when they are too far apart to be heard directly. A telephone converts sound, typically and most efficiently the human voice, into electronic signals that are transmitted via cables and other communication channels to another telephone which reproduces the sound to the receiving user. The term is derived from Greek: τῆλε (tēle, far) and φωνή (phōnē, voice), together meaning distant voice. A common short form of the term is phone, which came into use almost immediately after the first patent was issued.

Approaches

• ZeroPhone
• PinePhone
  • Jumpdrive
• Libre Cellular

References

• Wikipedia: Telephone
• Ubuntu: Introduction to open source private LTE and 5G networks
• Wikipedia: OpenLTE
• OpenLTE
• Sourceforge: Installing OpenLTE
• FPGA Implementation of LTE Downlink Transceiver with Synchronization and Equalization
• Implementing LTE on FPGAs
• GNU Radio
• Wikipedia: Software defined radio
• OpenRAN
• Wikipedia: Radio Access Network