Remote phone book caller id not working & No missed calls logs

[Stefan]

I can't say that the Dutch company appointed by Yealink didn't try to help, but the phone usage screams 'paying to be in a beta test' from all possible angles. In my opinion the phones simply aren't ready to be on the market as an end user product (plus the false claim in the datasheet about the number storage capacity per phone didn't help either).
Issue 4 got fixed, issue 3 got brushed off as 'we don't see the problem'. Issue 2 seems to have a working fix in yet another custom firmware, but is not available in the 'normal' firmware and thus not available.
Issue one is explained as 'you can use max. five phones, 100 contacts each. So we can claim a 500 contacts capacity per phone'. Right...