A private landline will show in all caller ID's as either "unknown" or "private". Never have had any issues with caller ID on the torch or any other phone, landline or mobile line. I would say if its all landlines its in the carrier not the device itself. Noit exactly sure how caller id works whether that info is sent out by the carrier or if its device specific.
Yes it is all landlines. I think the land line carrier in the area is having an issue and is looking into it. At the time of this post I assumed it was the phone because by coincidence I had received my phone while Frontier was taking over Verizon.