I'm using Lenovo A850 and I have a problem with a default dialer. It cannot recognize numbers with or without country code (depending on how it's saved in contacts list). I installed exDialer and calls are now displayed correctly in the dialer app, but when I call someone or receive calls, a default Phone app is still used and contact name is not displayed.
eg. I have contact saved as +44 1234 567890. Default Phone app can't recognize this contact if call is received as 01234 567890, but exDialed can. How can I make exDialer the default phone app?