Cannot proceed with installation on Linux Debian

[Federico Moschini]

Dear 3cx team today I tried to do a freh installation but not working as below screenshot.
Any suggestion?

 

[Agathocles Prodromou]

Hi @Federico Moschini ,

Please try copying the code in notepad first and then copy it from there to putty. (I recommend doing this every time you need to use any code found on the internet).

wget -O- http://downloads.3cx.com/downloads/3cxpbx/public.key | apt-key add -

If successful (it should be) then run

echo "deb http://downloads.3cx.com/downloads/3cxpbx/ /" | tee /etc/apt/sources.list.d/3cxpbx.list

apt-get update

apt-get install 3cxpbx