not able to recieve incoming calls
If the call name announcer did in fact cause a crash, try removing that app first, and have someone call you again. If it is still crashing, follow @Firelord's advice, clear the data and cache of the phone app, and perhaps try turning the phone off and on again. 

Lastly, if you are STILL getting this problem, try doing a factory reset. If THAT doesn't fix the problem, go back to wherever you got the phone and ask for a new one.