Samsung A-Series Phone

Internet Settings:
Select Menu > Settings > Application Settings > Browser Settings > Options > New.
Enter the following information:
→ Name: good2go web
→ APN: att.mvno
→ Auth Type: Leave blank
→ Username: Leave blank
→ Password: Leave blank
→ Protocol: HTTP
→ Home URL: http://ztdevice.home
→ Proxy: proxy.mvno.att.ztarmobile.com
→ Port: 80
→ Linger time: Leave blank
Highlight good2go web and then select Save.

MMS Settings:
Select Menu > Settings > Application Settings > Messaging Settings > Multimedia Message > Multimedia Message Profiles > Options > New.
Enter the following information:
→ Name: good2go web
→ APN: att.mvno
→ Auth Type: Leave blank
→ Username: Leave blank
→ Password: Leave blank
→ Protocol: HTTP
→ Home URL: http://ztdevice.home
→ Proxy: proxy.mvno.att.ztarmobile.com
→ Port: 80
→ Linger time:Leave blank
Select Save.
Highlight good2go web and then select Save.