mobile

I finally got my OTA lollipop update this week. All seemed fine untill I started getting and making calls and every call showed up as either private or unknown. I rebooted my phone hoping to fix the issue. It did, partially. Incomming calls now show the names or numbers of the caller in the log but outgoing still show either private or unknown. It appears that when the call didn't connect it shows as unknown and when it did, it shows as private. This occurs on either sim 1 or 2. I never had this issue before. Maybe resetting the phone will fix it but I'd rather not have to restore it so I'm asking here first. Any help would be greatly appreciated.