Weird Icon on the right side

Hello,

I have a sony ericsson (model T226) cell phone. For the past two days, there has been a weird icon on the right side of the display, it looks like a handsfree icon, but it is not, and it is not listed in the icon glossary.

I disabled the GPRS and I have the usual strong signal (5 sticks). But I still cannot hear anything when I receive or make a call. Neither can the person hear me.

Does anyone know what's happening? Any help is greatly appreciated.

Thank you.

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Please, no double posting. You already had another thread that had the same situation.

Like I already stated, you might just need to do a master reset. Look through the menu, then go to settings.

If you need any more help, call Sony Ericsson.