> Did that last year. No spam yet. Would it even be an attractive prospect
> for spammers? Email spam can be delivered very quickly, phone spam
> would require much more time and bandwidth.

Not sure if a spammer would care, if the software taking care of calling
SIP-addresses with pre-recorded messages would run on a network of infected
PC's (botnets), like is currently the case with email-spam. It might be that
blacklists and greenlists are going to be a necessary feature in future
SIP-phones or with SIP-providers :-(

So far I haven't had any SPIT (that's what they call it, I believe) on my
numbers registered at e164.org either.

Christian