It is very simple. Check your user manual on page 9.
SETTING THE DISPLAY LANGUAGE
1. Make sure the phone is OFF (not in TALK mode).
2. Press and release flash/program button until 1 ENG 2 FRA 3 ESP shows in the display. The default setting is English
3. Use the handset number pad or press the left or right arrow buttons to enter the desired setting. For example, to choose English press the number 1 key.
4. When finished, press and release flash/program button again to store the setting.
If you dont have the manual, email me and I will send it to you.
Jorge. jorgesmb@hotmail.com
Jorge Smith, July 2007