start Fongo on S9+ automatically

Hello,
I am using a Samsung S9+ and I would like to know how I can start up Fongo automatically when I start my phone. It seems that unless I start Fongo manually myself, I will not be able to receive calls.
Thanks
I am using a Samsung S9+ and I would like to know how I can start up Fongo automatically when I start my phone. It seems that unless I start Fongo manually myself, I will not be able to receive calls.
Thanks