8. The method of claim 1 , further comprising: causing a voice call to be initiated to a number string displayed in the second format in which the position marker is located when the first predetermined user input is detected and the number string meets third predetermined criteria.
8. The method of claim 1 , further comprising: causing a voice call to be initiated to a number string displayed in the second format in which the position marker is located when the first predetermined user input is detected and the number string meets third predetermined criteria. 9. The method of claim 8 , wherein the second predetermined criteria are less stringent than the first predetermined criteria, and the third predetermined criteria are more stringent than the second predetermined criteria but less stringent than the first predetermined criteria.