Hi
In the UK BT is the biggest network provider and they do provide a range of CallerID related services.
For example you can prefix 141 to a dial string to hide the CLI.
Is this service common with other operators in other countries? In a country are the codes used common? Eg in US what is the code? Is it common across the country? Is 141 used countries other than UK?
[I am not sure but maybe 141 only works on analog lines?]
Angus