Xperia ultra reboots when incoming call comes in

[stroke28]

When the phone is on standby and I receive a call the phone will completely reboot, thus missing the call completely. I've got the latest updates installed and this puzzles me and is very annoying since the phone is brand new.please help.

[stroke28]

Did the Xperia care fresh install and it still runs sporadically, sometimes I'm using it then press the power button and it doesn't wake, or reboots slowly so missing calls has become second place. I'm going to bring it back to the store for an exchange for the same phone because I love everything else about it.

[stroke28]

Thanks for all the feedback too, I appreciate it greatly.

[stroke28]

Hi guys, seemed like my phone was just plain old broken somehow because it never did work properly. I took it back to the store and they honoured my receipt and since I wanted an exchange for the same phone, it looked legit and I wasn't trying to rip them off somehow. The new phone works perfectly fine and there is nothing better than an xperia phone this large in screen Size when working as intended. Once again thank you all for the advice and help and I wish all a great new year!