Using a SIM card from a Motorola RAZR in an iPhone worked for many years - and why not? I never used the data side. Ever. One day I get an email from AT&T saying I've been put into a data plan, with no options out.
Dear Valued Customer,
We hope you are enjoying your iPhone! We appreciate and value your business and want to be sure you are aware of a change we've made to your account to ensure you have the best possible experience with data usage in the United States.
iPhones are made for data consumption-surfing the web, social networking, email and more. That's why we require an iPhone data plan in conjunction with our iPhones. This ensures that customers with data intensive devices are not unpleasantly surprised with high data pay-per-use charges.
For whatever reason, our records indicate your iPhone does not have an eligible data plan. We have added an appropriate data plan for your iPhone.
If you would like to select another iPhone data plan or have questions, please call 1-800-331-0500 (or 611 from your wireless phone). You can also visit www.att.com/myATT to manage your account. For additional information about iPhone plan requirements visit www.att.com/dataplans.
Thank you for being an AT&T customer. We look forward to continuing to provide you with a great iPhone experience.
Sincerely,
AT&T