Incoming call ISSUE.

Hello guys. I have proble with my p7000 and incoming calls. Sometimes the incoming call just bug whole phone. I can't recieve the call and I have to put out the battery. It's really annoying. And also, I don't see who called me in call history. I've made factory reset, but it didn't help. Also I updated my firmware to the version 20150807 but this bug is still here.

Absolutely same problem has man on this video. /watch?v=c588Clm67ME

Please help me.
/Sorry for bad English/