[jyl]

Originally Posted by masraum

The problem with that and the reason why it isn't likely to work is because of corporate environments. If you can imagine a downtown full of high rises full of people and desks, probably at least 50% of those folks DO NOT have a real phone number on their desk phone, so when someone sitting at a desk calls out to someone in the real world, the corporate phone system puts a real number in the "from" field. And depending upon the company and setup of things, there may be a bunch of different numbers that get used. So that ability to insert a from number has to stay.

But there can be a $ charge for a spoofed number number. Wouldn't take a large charge to upend the economics for spammers, while not affecting corporates.