Use the following instruction to play Ultima Online on your mobile phone:
1. Download the app to your phone:
2. Input the data as in the picture to set up the server connection:
3. Now you may connect to the server.
4. In the main menu click on the name of the server that you put earlier (mine is Zulu as you can see from the image above).
Then all the necessary files will be downloaded automatically. Now you may use the server to play.