Thank you for your advice.
I do have one problem. Since my phone now is in upgrade-mode - I am unable to change the TPTF-server-settings in my phone. My phone looks for an IP 192.168.0.19 which is not someting I can choose in my TPFT-server-program.
If you are able to help me, I would be very grateful.
I am unable to change the TPTF-server-settings in my phone.
DHCP Option 150 is a mandatory "requirement" for Cisco-branded phones. This setting instructs the phone(s) the correct IP address of the TFTP server.
Thank you for all the replies.
How do I generate the SEP[MAC].cnf.xml file?
My phone has no working firmware at the moment.
How do I tell my phone the IP-adress of the TPTF-server?