Happy New Year, everybody!
I have an Asterisk system running on FreePBX in my office. I used to have a VPN connection from my home to the office, and was using an Aastra phone at my home, connected to the Asterisk server through the VPN connection. That was not without problems, but it worked. We had to replace the firewall in the office with a different one, and so far I have not been ale to set up a VPN connection between my home and my office, so the phone is currently nothing more than a glorified paper weight.
So, I decided to see if I can set the phone in my home up to connect directly to the Asterisk machine.
First order of business: make the server accessible from the outside. I set it up with a DDNS and I have a FQND now for the asterisk server, and I can ping it. So, that seems to be OK.
Second: Set up the phone to connect to the Asterisk server. This is where it gets tricky, I think. the phone gets an IP address from my home server (which is on a different segment than the office network). I left it that way, but replaced the internal IP address I used before with the FDQN name I have now, then rebooted the phone.
Result: the phone seems to get stuck for a while on various settings (with an option to skip), then seems to connect for a second or so, but then switches to “No Service”. The Asterisk log file shows nothing related to the phone, so I assume that there is no connection.
How do I have to set up the phone for this to work? I suppose I need an IP address from my home system so that the phone IP traffic can be routed at my home, right?
Is what I am trying to do even possible?