Originally Posted by ZapperO

I did a few weeks ago....although until 6 months ago my number used to be with AT&T as a regular postpaid account...so maybe that helped.

On a related note, has anyone had success signing up for ISIS using an AT&T Go Phone SIM/account? I get all the way to where it send the verifying text message, I click on the text, it says it is processing and then it errors out and says "Error 7007" blah blah blah...call customer service/tech support for help.

I read somewhere that ISIS doesn't work with Prepaid wireless accounts but Straight Talk is definitely prepaid and it worked for me so wondering if anyone has any tips on getting a Go Phone to work? I'm using an iPhone 4 with an iPhone 4 AT&T ISIS case. TIA.