Data roaming charges in flight mode

[tahoeflyer]

I currently have the Cingular 8525 and recently went down to Baja for a week. I had the phone function on to let me know when a call came in and then would go to the local internet cafe, switch the phone function off using "flight mode", confirmed phone function was off in "Comm Manager" and looking at "Settings/WLAN Settings" for the WiFi establishment.

I would then use Skype on the WiFi network to make calls back to my cell phone carrier to retrive messages.

Upon returning to the U.S. and reviewing my usage on the Cingular Web page I find that I have "Roaming Data Charges" to the tune of about $120. I have talked to Cingular and they were perplexed as to how the data charges were incurred if the phone funciton is turned off. HTC technical services were equally perplexed. HTC came up with the solution of pulling the sim card out to totally disable the phone function while still allowing WiFi access. In the states I have unlimited data access so this is not an issue, but since I travel abroad frequently, this could get costly without a simple solution (pulling the sim card out each time is not a simple solution).

Is there anychance that one of the following apps are allowing my phone to indicate that the phone is in flight mode (phone disabled) while still broadcasting in GSM/UMTS.

All thoughts on the subject are appreciated

Phone: Cingular 8525
Apps: PTTfix.cab
BandSwitch.Arm4.cab

[Guest69]

Not sure if this helps, but after a couple of rediculously high months of data usage on my Orange UK contract, for two months I did not use any data features on the phone unless it was docked with my laptop, using it's broadband connection to browse on the phone. The opposing arrows signal was showing, signifying that my tytn was using the laptop's connection. My bills still show high usage, I had NoData running, blocking all Gprs usage.
Is it possible for the sim card to be still recording the data transfer and wrongly charging me for the usage? I have tried speaking to Orange about this but each time they have not understood what I'm talking about.

[Lurker0]

I'd sugggest you to try Spb GPRS Monitor.You need to play with it to tune it right way. It allows to monitor up to 5 different connections, and have a Today plug-in and an indicator in the top bar to show the activity. It helped me a lot by signalling that my phone uses GPRS instead of WiFi (no, I never even heard of GPRS/UMPT in flight mode!).

I have it set up to monitor GPRS for two SIM cards I have, connection via USB and BlueTooth. For any other type of connection (incl. WiFi) it does not indicate anything. Quite enough for troubleshooting, and also to understand your bills.

Probably there are similar apps, I never tried them.

[tahoeflyer]

Thanks for the suggestion on SPB GPRS Monitor.

I put the SPB GPRS Monitor on the phone and low and behold apparently any time the system kicks into the GPRS data mode, and it seems to do this on its own every once in awhile you get charged for the link whether you use it or not. SPB GPRS Monitor does a good job of letting you know if your not paying attention to the Martini Glass icon up top.