Oracle VM VirtualBox
Ubuntu 18.04 LTS

sudo add-apt-repository ppa:gnuradio/gnuradio-releases-3.7
sudo apt-get update
sudo apt install gnuradio

sudo apt install -y
rtl-sdr
librtlsdr-dev
osmo-sdr
libosmosdr-dev
libosmocore
libosmocore-dev
cmake
libboost-all-dev
libcppunit-dev
swig doxygen liblog4cpp5-dev
python-scipy git build-essential
autoconf libtool pkg-config libc6-dev
gr-osmosdr
libcanberra-gtk-module

(export PYTHONPATH=/usr/local/lib/python3/dist-packages/:$PYTHONPATH *)

cd $HOME
mkdir rf
cd rf
 
git clone https://github.com/velichkov/gr-gsm.git
cd gr-gsm
mkdir build
cd build
cmake ..
mkdir $HOME/.grc_gnuradio/ $HOME/.gnuradio/
make
sudo make install
sudo ldconfig

(sudo cp -r /usr/local/lib/python3/dist-packages/grgsm/ /usr/lib/python3/dist-packages/ *)

* not needed to do, try if you encounter problems

https://i.ibb.co/HPnjTbC/gr-gsm-vm.jpg

2G still quite active

https://i.ibb.co/XpPngMh/imsicatch.jpg

re-DECTed

git clone https://github.com/znuh/re-DECTed.git
sudo apt install net-tools
cd re-DECTed
cd SDR
make
sudo ip link add dummy0 type dummy
sudo ifconfig dummy0 up
sudo ./dectrcv

open second terminal
~/re-DECTed/SDR$ ./dectrx_37.py