(sorry for my english, hope its understable)
I m having some trouble with the SPA504G IP Phone.
As new phone, I plugged the phone to our poe switch, having TFTP and DHCP on a GNU/Linux BOX, everything was perfect, as usual with the SPA942 Phones (we have used this phones many times), the phone is asking for spa504g.cfg via TFTP. Good thing :)
But ... before having this file and spa-$MAC.cfg file ready, the phone is now in SCCP mode, asking via tftp to XMLDefault504G.xml, like the Cisco IP PHONE 7xxx series, then for the SEPXXXXX . Its in SCCP Mode.
So, I have try this:
-Factory reset: not successfull, the telephone still asking for the XMLDefault, not for the spa504.cfg.
-Try to factory reset using the # method (like in 7xxx series): not sucessfull
-Try to change the SCCP Signalling mode to SIP using the menu on phone: The menu is know "read-only", i can only do factory reset, i cannot change ip address, signalling, the only thing I can do is factory-reset.
Any idea how can i change this phone again to SIP Mode ? I have read the zero-touch tutorial and have not found information about this, and back to the spa504g.cfg provisioning mode ... ?
You can ignore the phone looking for the XMLDefault504G.xml file.
The phone always looks for the XMLDefault504G.xml file, even in SIP mode and will then look for the /spa$PSN.cfg file.