After inserting your Ntel SIM card into your Android phone, you might notice that you are unable to surf the internet. You simply need to setup your Ntel APN. To do this:
Go to Settings > More > Cellular networks > Access Point Names
Under APNs, Tap the Add (Plus) icon at the top
For name, input ntel
For APN, input ntel
Leave the other fields blank
Tap the accordion menu at the top-right corner then select Save
You should now be back to APNs
Tick the radio button in front of the ntel APN you just added to set it as default APN