i have currently always worked with openVPN + freepbx behind a firewall.
that means from phones i can ping directly freepbx and from freepbx to the phones also.
now i want install a new freepbx what is placed direct in cloud (static ip-address).
then with the endpoint manager i will do a rollout for my snom phones.
so my main question: is this setup good or can this work?
for my tests:
currently i tried it several times but my phones (snom d715) always goes from unavailable to not in use.
if i then do outgoing call from snom phone, the phone writes unregistrered.
but i have configured the firewall what is onboard in freepbx good. also have tried to disable the firewall.
is this setup good or not recommended? how i can get this work “stable”? is there a setup guide how i should configure the freepbx + endpointmanager? or is it better to use openVPN instead of direct connection?
have tried it with max contacts = 10 but only used currently the 1 contact with my snom phone.
that means: my freepbx = in a datacenter with a public ip address,
and my phones are in several different NAT networks behind. autoprovision active (http port 84)