I had this problem with my mum but it was with cordless phones as no matter how many times I reminded her to press the red button at the end of the call she never did. So the call was never 'ended' as such and was engaged until she (remembered)?! to put it on the rest, which was rarely, and then she'd forget where she'd put the phone. I took it off her in the end. Now she has a problem with the tangled wire syndrome you mentioned.
I work with someone who also gets the phone so tangled up that her head is often resting on the desk when she's talking to someone so she ordered a little plastic clip which prevents the wire getting really twisted. I am going to try and order one for my mum, I will let you know what it's called. It might avoid the wire piling up and preventing the phone going on to the rest. 1471 syndrome is another issue, but I've sort of given up on that (pasting notes to walls didn't work)
I'll post back tomorrow and let you know the name of the gadget!
I work with someone who also gets the phone so tangled up that her head is often resting on the desk when she's talking to someone so she ordered a little plastic clip which prevents the wire getting really twisted. I am going to try and order one for my mum, I will let you know what it's called. It might avoid the wire piling up and preventing the phone going on to the rest. 1471 syndrome is another issue, but I've sort of given up on that (pasting notes to walls didn't work)
I'll post back tomorrow and let you know the name of the gadget!