Originally Posted by
docbert
Not so. Although the box on their website is labeled "contact" you can simply type in a phone number and it'll work.
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.