Currently I use this:
‘Coz this’s the recommended settings by the service provider China Unicom BJ.
BTW, the package I’ve bought is 3GB in 6 months cost 300 RMB officially(actually less than 150 via Taobao). It’s said this package is for Beijing only.
However, after two month I have to say this APN is NOT always workable. I don’t know the reason. and I haven’t call the sp. Instead, I asked google and got another APN:
Guess what? It’s working, sometimes.
So all in all, I use the two APNs mentioned above. And when one doesn’t work, I’ll use the other. If you don’t care about the difference like I do, you can use my method.