1. iMore Question's Avatar
    When I text to my son's phone I get an error message saying I must use valid 10 digit number.
    04-15-2015 10:28 PM
  2. mikeo007's Avatar
    If you're in Canada/USA, make sure you're not putting the "1" in front of the number. You only use the "1" to dial an actual call. For sending a text, just enter the actual 10-digit number.

    Also make sure you're actually entering the area code. You need the full 10-digits of the number to send an SMS.
    04-16-2015 07:32 AM

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