contacts showing up as "unknown" in the dialer

dv1394

Member
Sep 30, 2015
10
0
0
Moto X, Andriod 5.1, pure stock, bought in Germany, used in Russia.

I've got a constant problem with caller's ID showing up as "unknown" in the dialer history.

This behaviour is sporadic. I could not trace back any reason why a caller from my contact list would appear as "unknown" in the call log.
Sometimes when i get an incoming call from an unknown number it dos get listed explicitly in the incoming call history and i can call back (the number itself gets registered in the incoming call log) but half of the time i get an unanswered call as "unknown", so i can't even define who's been calling me.

The same applies to in/out calls from/to my contact list. I get "unknown" numbers in the log that i can not redial or keep the history of.

I tried an alternative dialer (Dialer One from Google Play which i had as a default in my previous Motorola Defy+) with no success.

Most of my contacts are saved in Cyrillic but i never had any problems with my Motorola Defy + which was also bought in Germany.
And the error seems to be random anyway. Sometimes i get the contact or the phone number listed in the log, but most of the time i get "unknown" source.

Any clues or suggestions on solving this problems? Thanks in advance!

I'm a newbie here so i can not post any screenshots, sorry for the pure text.
 
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