Zello allows prompt voice push-to-talk group communications worldwide to up to 1000 people simultaneously in a “channel” using internet-connected phones, tablets, computers and Zello “radios”. Note that Zello requires an internet connection to work. If your device loses its data connection, Zello does not work!

Zello also works very well from Linux using WINE, since the Zello client is a Windows program. Of course, most Zello users use their internet-connected mobile device.

Install Zello on Linux

1. Download Zello for PC.

2. Install Zello with WINE

   wine ZelloSetup.exe
   

This creates a Zello icon to launch the Zello app in Linux.

Optional: command-line Zello

1. Create a script zello.sh with the contents

   #!/bin/sh
   
   wine "$HOME/.wine/drive_c/Program Files (x86)/Zello/Zello.exe"
   

2. make executable

   chmod +x zello.sh
   

Zello alternatives

For licensed amateur radio operators ONLY, Echolink works on Android and iPhone/iOS as well as computers using Linux / Mac / Windows. Echolink interconnects with hardware radio links worldwide and is a key technology for disaster relief communications for Internet-connected radio links.

Related:

Speaker-mic for mobile phone PTT apps