So If you use EPM (great tool) and setup login on the global page, a device plugged intot your network with a DHCP option pointing it to FreePBX willl come up, unregistered, and show the login button.
Pressing the button to the APP will ask for extension and password. Entering that correctly, causes the phone to get a config file and register.
Well how is the phone being told to pull config when it is not yet registered? THis works on Aastra and Yealink phones. I assume on other models.
Some kind of SIP notify sent to the MAC? Magic? I dunno, that’s why i ask.
Obviously, I can packet capture, but I assume this has to be some standard ability that I am simply not aware of as I have not needed to deal with this before.
If oyu read my other thread about EPM not creating config files, you will know that I want to get around a problem with the phone apps login function.
I am using EPM (well will once it makes files) to get the config files created.
Sending a pjsip notify is a simply thing for a registered device, but a non logged in phone is not yet registered.