Fax no longer existing as a menu point in Issabel 5?

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Fax no longer existing as a menu point in Issabel 5?

SoWhy

I upgraded Issabel 4 to Issabel 5 on a new VM and imported the configuration from my old setup. Everything looks good but the "Fax" does no longer appear on the menu and it said "Fax Service not installed". I manually installed hylafax and copied the configuration from my old VM, so it now starts the Fax Service but the menu item is still not there and the IAX-extensions don't connect to Asterisk. What else do I need to do?

TIA
SoWhy

SoWhy

Okay, I saw that you had to manually select it when installing. Is there a way to add it to an installed version or do I have to reinstall?