FreePBX download firmware or Sangoma talk authentication through proxy on a managed network

Hi all, I have installed FreePBX (asterisk version 20) in a managed network.
Internet browsing is allowed only through proxy, any other connection is broken by the firewall.
I have configured the Red hat operating system, to use the proxy and the commands: curl, wget, yum, honor that setting.
I have also configured FreePBX to use the proxy from the Modules::Advanced setting menu in the Proxy settings section.
But when I try to download a phone’s firmware, I can’t do it because it connects directly. The same thing happens if I activate the Sangoma talk APP. The authentication does not use the proxy and it tries direct output.

How can I enforce the configurations to FreePBX=Asterisk version 20?
thanks

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