So I recently got an Audiovox SMT5600, except that mine was shipped in from over sea's. I hooked it up with Cingular service here in Washington state, it works great. However, the phone that I had wasn't programmed to understand the Cingular network, it said "31041" instead of "Cingular" as the service on the screen.
Lucky for me I got to be friends with the guys in the Cingular store who told me it's just a simple registry edit that I could do if I have the time...
If I have the time?
I am a geek and nothing would make me happier than dig around in the SmartPhone registry. So naturally I found the PHM Registry Editor. It's free, it install's easy, and it's also easy to use.
One warning here is editing the registry can seriously mess up your phone, so be EXTRA careful!!
Once installed, I opened it and browsed to HKLM\Software\Microsoft\RIL\OperatorNames, then clicked the Values button. I created a key called "31041" (the string for the home network). Inside the key I simply typed, using T9, "Cingular Wireless". Then rebooted the phone. Whamo! Now my home screen says "Cingular Wireless" instead of "31041"!
Pretty sweet Eh?