Some can, the NHS for one.
I think its because its a very old system and it is what it is.
Brian

--
----- --
This newsgroup posting comes to you directly from...
The Sofa of Brian Gaff...

Blind user, so no pictures please
Note this Signature is meaningless.!
"Jim GM4DHJ ..." wrote in message
...
if you can withold your number when you phone somebody why can you not
when you text ?