I've written about it elsewhere in this thread but I've found that a simple vopice menu that has a message (that might sound like a voicemail to a spammer's dia

I've written about it elsewhere in this thread but I've found that a simple vopice menu that has a message (that might sound like a voicemail to a spammer's dial computer) and that requires people dialing in to press one key stops 99% of spammers