I was able to telnet into the IP phone with the default password of iptpassw and use the command DBMN to tell it the IP settings.
After that it still couldn’t connect because the firmware was not compatible with the v9 IPRC. The phone was at v1.01 and needed 8.1.0.
I looked in the manual and found out that I need to flash the latest 8.1.0 firmware and it should be called ipp+.hex
My v.126.96.36.199 disc has lots of firmware, but not that one. I did find it on the v188.8.131.52 disc.
I held down the 5 and 6 to get the 770.4500 into download mode.
It assigned itself an address of 192.168.200.201.
I started the Upload utility and entered the IP address of 192.168.200.201 along with the default account (IPT) and password (iptpassw).
I changed my PC IP address to 192.168.200.200 so I could connect to the IP phone.
I started the upload and everything worked!
It looks like everyone was correct a…