Find your phones IP with the below instructions
Yealink T53: Press the "OK" button on your phone, this will display the IPv4
Cisco 6851/7811: Press the settings button (this will be an icon of gears), press 6 on the keypad for "status", then press 2 for "Network status". From there, scroll down to IPv4, press on this option and the IP will be shown on screen
Cisco SPA504G: Press the "paper" button, then option 9 for "Network Status". This will now display the IPv4 on screen
