Is there any phone contacts limit? Because in my phone I have 2600 and not all of them are synchronized to my rx..

 

Yes. The limit is 2500 contacts with 4 numbers per contact allowed. So up to 2500 contacts and 10,000 numbers. I've noticed that if you have more than the limit it's random what gets pulled from the phone. It's not necessarily the first 2500 in your phone.