Re: Wrong tree
I agree with most of what you say (I have a TrueCall unit and wouldn't be without it) but there are a couple of wrinkles where anonymous callers are concerned.
Our CPs can't force anyone in Mumbai to send an ID signal. So if there is no caller ID what are CPs to do? They can't arbitrarily block anonymous incoming international calls as that would be interfering with your service. Okay so perhaps they will allow you to 'opt out' of anonymous calls. But then what happens if your granny is on holiday in Mumbai and needs help and she just happens to be using a phone that doesn't transmit caller ID information?
Which leads on to the second part of the problem which is that quite a few organisations that deal with sensitive personal information like to withhold their number. GP surgeries often do for example.