- Go to main menu of your iPhone
- Tap on the General icon
- Select the Network option
- Open Cellular Data Network
- Now enter new APN Settings
- Save all the changes that you have made.
- Reboot your iPhone.
- Name: Airvoice
- APN: att.mvno
- Proxy: 66.209.11.33
- Port: 80
- Username: Leave it blank
- Password: Leave it blank
- Server: Leave it blank
- MMSC: http://mmsc.cingular.com
- MMS proxy: 66.209.11.33
- MMS port: 80
- MCC:
- MNC:
- Authentication Type: PAP
- APN Type: default,mms
- APN Protocol: Leave the default settings as it is
- APN Roaming Protocol:
- Bearer: