LifeinAsia - 6:16 pm on Sep 11, 2009 (gmt 0)

Probably not. Most likely they're using VoIP services and making unlimited calls for a fixed price. The minor blip is that the next call in the queue can't be made until the current call is completed (or disconnected). So if many people did the same thing, it would slightly cut down in the number of robocalls being made.

Many of them are probably making the calls in violation of their VoIP provider's ToS. Getting their phone service cancelled for a ToS violation would be nice payback! Not sure how to go about that though...