Add new users to the sipwitch group

src/freedombone-adduser

     fi
 fi
 
+# add user to the sipwitch group
+if [ -f /etc/sipwitch.conf ]; then
+    usermod -aG sipwitch $MY_USERNAME
+fi
+
 # add user menu on ssh login
 if ! grep -q 'control' /home/$MY_USERNAME/.bashrc; then
     echo 'control' >> /home/$MY_USERNAME/.bashrc