Go to Settings  More / Mobile networks Access Point Names Press ➕ on right top Name: Red Pocket Mobile
APN: RESELLER
Proxy:
Port:
Username:
Password:
Server:
MMSC: http://mmsc.mobile.att.net
MMS proxy: proxy.mobile.att.net
MMS port: 80
MCC: 310
MNC: 410
Authentication type:
APN type: default,mms,supl
APN protocol: IPv4
APN roaming protocol: IPv4
Bearer: Unspecified
APN PPP phone number: Not set Do not change the default values set by device for all blank fields above. | 
