Originally Posted by
Dodge DeBoulet
Please try this again with a number that you are absolutely certain is not in your address book. I actually verified this before my prior post and got an error that the number I typed in was not a valid contact when I clicked "Send." And I verified it again just now.
Their REST API has no such limitation, somewhat unsurprisingly. I confirmed that with the same number I used to test the web UI. Not sure why they felt it needed to be enforced in the latter.
I don't have ANY addresses in my address book, and I've never had problems sending SMS's.
Just tested it again twice. Once with one of my numbers that I'm certain I've never SMS'ed, and then a second time with the phone number for a Denny's restaurant half-way across the country that I picked at random. Both worked fine. (Well.. both sent. I'm guessing the Denny's didn't get the SMS, but that's not really the point)
Edit: OK, I might know what your problem is. Are you putting a "1" in front of the number? Try leaving that out and just enter a 10 digit number...