chiliGREEN W251CZQ - Manual (Page 179)

Modules & Options
3G Module 7 - 53
7
Number
You can choose to Use default service center number or you can uncheck the box
and add your number manually if your service provider supplies a different number
(click Apply to save the change or Default to return to the default number).
Memory
Phonebook memory status displays the number of contacts displayed on the USIM
card.
Figure 7 - 38
SMS Utility -
Advanced Settings
Number & Memory