How to Place a Call on Your Droid X
Input the number to call by touching the keys on the dialpad.
If you make a mistake, touch the Delete key to back up and erase. If you need to dial an international number, press and hold the 0 (zero) key until the + (plus-sign) character appears. Then input the rest of the international number. (The number shown here will let you leave comments for the people at the White House.)