1. Install sox package.
apt-get install sox
2. Create a script in your /bin folder "play_gsm.sh"
#!/bin/sh
gnome-terminal --command="play $*"
3. Make the file excecutable.
chmod +x /bin/conf-placeintoconf.gsm
4. Run this command in terminal
play_gsm.sh "path of your .gsm file"
