Share your experience!
Hi, my Z3 compact has been working fine but this evening I suddenly noticed that I cannnot answer incoming calls neither in standby mode nor when the home screen is active. The phone rings out but the swipe icons for answering the call simply don't appear any more even when the home screen is active. If the phone rings when in standby mode, the phone simply stays blank and cannot be woken up. The call eventually times out and leaves a message on my voicemail. I see the notification light flashing and the sound of the phone ringing but the screen is otherwise blank. If I try to press the power button to wake up the phone then the call is immediately diverted to my voicemail service.
I can make outgoing calls OK, but incoming calls can no longer be answered! I have power-cycled several times but still the problem persists. This is weird! Is there some kind of setting I may have inadvertently clicked which could possibly cause this? Thanks for any light you can shed on this.
Solved! Go to Solution.
Thanks Mr O sugestion worked a treet, can now answer calls.
thanks for the help..
Settings> Personalization > Manage Notififcations > All > InCallUi --> has been really helpful to me..
though I do share the same thought that it's understandable that with high-tech or smartphones comes the idea that there are a lot of applications involved in the phone, but would appreciate it very much if sony and other company producing phones as well will consider how handy or convenient a phone will be used for non-techie users like us. this type of setting will probably not come into my mind, and probably if I have not googled for answers i'll still be clueless on how i could fix or do i have to go all the way to the service center just to have it checked. it's a bit of a hassle going thru these set ups. hope you could come up with a smart phone that is not only up-to-date but also easy to use.
thanks a lot everyone, and have a great day! 
I've got the same issue. Rings ok but nothing else, still black screen, no buttons to touch. The only difference is that after 20-30 seconds of ringing buttons appear in normal way and I can answer.
I'm too lazy for hard reset. Managing Notification doesn't help.
Is there any other option?
Bang on Mr O, many thanks
Thanks Mr_O, the InCallUi worked for me.
Could anyone tell me where I find 'Personalization' so I can find InCallUi?
Settings > Personalization > Manage notifications (Tick box InCallUi)
I have a totally identical problem on phone freezing on incoming calls and I am unable to answer. I want to try this setting but I can't see personalisation in my settings 
My Xperia model is S.
Worked for me. Just found the Phone app and somehow it had been silenced. Thanks!
I can not accept my received call how can I arrange or is thear any another method to receive my incoming call