Programmatically getting the iPhone's carrier signal strength

Question

Hi all,

Is there a way to get the iPhone's carrier, and/or the current signal strength, using Objective-C? I know how to determine if a data connection is present, and whether or not that connection is wi-fi vs. cellular. I also know that you can manually place the iPhone into "field test" mode by going to the phone app, and dialing #3001*12345*# and hitting Send.

Thanks! -Dan.

Answer 1

You made me curious and I found out that it's actually *3001#12345#* (hashes and stars exchanged).

Answer 2

Then how do you get your phone OUT of the "field test" mode?