Trying to install Freeswitch in Debian 9 and 10. Both systems failed to start:
Running hooks in
/etc/ca-certificates/update.d...

done.
done.
root@debian: ~ $ fs_cli -rRS
[ERROR] fs_cli.c:1691 main() Error Connecting []
[INFO] fs_cli.c:1697 main() Retrying
[ERROR] fs_cli.c:1691 main() Error Connecting []
^CInterrupted.
root@debian: ~ $

I have tried to install from https://freeswitch.org/confluence/display/FREESWITCH/Debian+10+Buster to install using debian packages.

Any suggestions, please?