I have one problem, i establish to send SMS but my problem is that i can send only 10 characers any IDEA???

Hello,
Can it be that you use vriables of type STRING?
If you definea string of50 char takes in fact52 bytes, because in front of the characters,thevery firtsbyte tells the max length the string can take, where de second byte the effective used length.

If by mistake, the very firts bytewas overwritten with 10, the max string will be 10 long.