We have a working OpenVPN setup among several offices that has worked for years. I see that the Sangoma S700 series phones (among others) can utilize OpenVPN, but I cannot find instructions on how to configure them manually.
Yes, I see the instructions for utilizing EPM to configure the phone, however, that is assuming the FreePBX server is going to be the OpenVPN server. I do not want that – I have OpenVPN running on my firewall, and life is good. I want the phones to connect to my firewall, and then they can find the FreePBX server through routing.
I see the web tab on the phone for uploading VPN Config, but I have no idea on the format of the uploads. Usually, OpenVPN requires the CA, a certificate, a config file, and in my case, a dlh and TA files. Do I need to send them all to be uploaded, or perhaps all tar’d together and the phone does its thing.
How do I set this up manually?