Hello everyone,
Attached is the screen shot of my iphone. You can see there is a phone-like symbol on the top right corner between alarm and battery percentage. I was talking on the phone when a second line came. But the phone didn't display the options that to hold and answer (and stuff like this). Thus I couldn't do anything except continue talking on the phone. After I finished the call, this symbol appeared and never went away. I tried reboot and taking out the SIM. No luck. Then I started question my memory
. We normally don't have that symbol when we are not making calls, right?
Can I take it away? I know it is not a big deal, you know, it is just weird.
Thank you~~
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Problem Solved by a Reset (Reset All Settings)
Thank you everyone! Problem solved! I did a reset, the "Reset All Settings" without loosing all data. Everything went back to normal.
More info:
It is jailbroken, iPhone 3GS 3.1.2 Firmware 5.11.07.
I used Blackra1n to jailbreak. I got the Internet Tethering back.
I also have GV as someone mentioned.
After the reset, everything went normal. Well, the only problem was the weird icon.
Again, thank you all.

Attached is the screen shot of my iphone. You can see there is a phone-like symbol on the top right corner between alarm and battery percentage. I was talking on the phone when a second line came. But the phone didn't display the options that to hold and answer (and stuff like this). Thus I couldn't do anything except continue talking on the phone. After I finished the call, this symbol appeared and never went away. I tried reboot and taking out the SIM. No luck. Then I started question my memory
Thank you~~
=================================================
Problem Solved by a Reset (Reset All Settings)
Thank you everyone! Problem solved! I did a reset, the "Reset All Settings" without loosing all data. Everything went back to normal.
More info:
It is jailbroken, iPhone 3GS 3.1.2 Firmware 5.11.07.
I used Blackra1n to jailbreak. I got the Internet Tethering back.
I also have GV as someone mentioned.
After the reset, everything went normal. Well, the only problem was the weird icon.
Again, thank you all.