I have a Samsung 100 R2 that has developed and issue with caller id.
The inbound caller ID will work fine for a few hours, then a call will come in, and the display will show a previous number vs the actual number calling.

Saw this before, but cant remember what we did to fix it.

Thanks,
Chaz

I had the same problem on the same system and version with pstn lines.

Never got it fixed.

Try upgrading to 2.76

Even if you upgrade to 2.76 it will not fix the problem. I have had many of these issues and did get a custom sp100 file from Samsung that fixed the problem. You do have to be on 2.76 to install it, if not it will kill the processor card.