How to Text to a Landline With ATT

1. Open the 'Messaging' application on your AT&T mobile phone. Select the option to compose a new message. Enter the recipient's landline number in the 'To' field.
2. Enter the subject for your message in the 'Subject' field, followed by entering the content of your message in the body of the message.
3. Proofread your message (optional) and select the option to send the message to the landline phone.