In the days of analogue cloning, people only used the ID's to make calls, there would be no point resolving the phone number as no'one would want to incriminate themselves by answering a knowingly cloned phone.

Well, back in the days of analogue, ie about 8 years ago, Hugo found his phone had been cloned. It was odd. As I recall, you could call his number from his phone and get an irate Glaswegian! The network seemed happy enough to have two identical phone IDs active at the same time.

pca