I need to do an "ether_init" before "tftp_init" for my AP to start the download with tar command.

Here is what we found based on the sh run you have attached.ephone 90 octo-line is empty.!ephone-dn  90  octo-line!!and it is used by ephone 11:!ephone  11 device-security-mode none video mac-address 001D.09C4.1747 ephone-template 5 username "jdiazre...

Which version of CCA were you running when you experienced this issue?

If you have configured the unit using CLI before using CCA, make sure ephone-dn that is used by ephone has both name and number configured.