GNU/Linux Pop!_OS Installing oFono Phonesim – Step by step Guide
How to Install oFono Phonesim in Pop!_OS LTS GNU/Linux Desktop.
And oFono Phonesim for Pop!_OS is a Modem Emulator that oFono uses for development and testing. This allows oFono to be used by any host without requiring special GSM (or other) hardware.
Moreover, oFono is a stack for Mobile Telephony Devices on Linux. oFono supports speaking to Telephony Devices through specific Drivers, or with generic AT Commands.
Finally, this guide includes detailed instructions on Getting Started with oFono Phonesim on Pop!_OS.

1. Launching Terminal
How to QuickStart with Command Line on Pop!_OS GNU/Linux
First, Update the Apt Repo Sources with:
sudo apt update
Authenticate with the User Admin Pass.
If Got “User is Not in Sudoers file” then see: How to Enable sudo.
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