SIms got switched and now no edge or "cellular data network" option

[lil_y]

I had Edge working on my iPhone fine before, said APN and edge network. but then my nephew put in his AT&T sim card.
Now I put my sim card back in and it didn't work.
So I went to network to put the edge server back in but now it only says "VPN"
and APN is gone I don't even have the "cellular data network" option anymore, so what happened? How can I fix it?

[jaminmc]

I am sure that by now, you have turned your iPhone off, and turned it back on. So try reseting your network settings, and restarting your phone.

[DirkME]

You would need to get the Cellular Network Data from the provider you want to use.
You got to fill it in the APN-Field.

For example for Pay&Go O2 in the UK, it would be:

payandgo.O2.co.uk

for the APN fields and also into the MMS field.

That will give you internet access as long it is provided or in your Cell-Plan.

Hope that helps

Cheers

Dirk