Best Cellular GSM-A (AT&T) Programming Instructions
 DATA & MMS settings for Best Cellular GSM-A (AT&T or unlocked GSM phones) – YOU WILL HAVE TO CHANGE YOUR PHONES APNs (or create new APN) (Access Point Name) to work on: Best Cellular (GSM-A)
Best Cellular (GSM-A) Network APN Settings:
| Data Settings | Value | 
| Name | Best Cellular | 
| Data APN | att.mvno | 
| Proxy | 66.209.11.33 | 
| Port | 80 | 
| Username | |
| Password | |
| MMS Settings | Value | 
| MMS APN or Server | |
| MMS Username | |
| MMS Password | |
| MMSC URL | http://mmsc.cingular.com | 
| MMS Proxy | 66.209.11.33 | 
| MMS Port | 80 | 
| MMS Maxsize | |
| MMS Profurl | |
| MCC | 310 | 
| MNC | 410 | 
| Authentication Type | |
| APN Type | default,mms,supl | 
For iPhones:
- Connect to WiFi
 - Navigate to: BestCellular.com/gsma
 - Click “Install”.
 
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