SONY Xperia U
Automatically comes to general mood

Dear Sir/Madam,

From few days am facing an problem in my handset,

It's automatically goes to general mood when I receive a call even though I keep it to silent mood.

Am not using any android application to automatically change from silent mood to general mood.

This automatic changes made me embarrassed when I attend the classes.

Plz help me to finger out the problem.

Thanking you in advance. Will be waiting for your feedback ASAP.

Regards,

Charan