integer number

hi,

i used a integer number field to ask for phone number in registration, but any number a user fills in is changed to 2147483647

any number i try in backend is also changed to 2147483647

fiel has max size 10

min number is 1
and max number is 9999999999

is there any way to fix this.

text field works fine but user can use letters or words which i don't want

i would like to use an integer number also to be able to perform code area searchs

any idea??