On version Freepbx 13 I have always been able to edit Aastra.cfg, which in my thinking tells the phone where the vlan ID sits, before it downloads the phones config. Fast forward to Freepbx 15, on the newest endpoint version, if i go to basefile edit and attempt to edit Aastra.cfg, I click the link to edit and theres no text, Its like it cant parse the file, to read it.
I have already made sure the tftp folder and the file in question is chown’ed to asterisk:asterisk and that does not appear to make a difference.