Upgrade from 2.6 to 2.7 - Localy


One question - FreePBX is in a local secure network (no internet access), and has to be upgraded from 2.6 to 2.7 (because of bulk extension module) - how can I upgrade if I don’t have access to mirror.freepbx.org?

can I download modules of 2.7 version manualy and upload them to the system, if so, do I have to be carefull of any order of installation or it doesn’t matter (first framework, then core…)?