Why doesn't my phone ring when it is locked?

[Windows Central Question]

why my phone doesnt ring when it is locked??

i dont receive any call and messages from viber if my cell phone is locked. my cell phone model is xperia Z1...

 

[jmshub]

Re: why my phone doesnt ring when it is locked??

Hello,

This is the Windows Central message board, for Windows devices and Windows Phone. Your Xperia device is running Android. May I suggest visiting our sister site over at Android Forums at AndroidCentral.com