Phone pranks: hacker’s approach to IP-telephony
The Clickatel service (a service that allows SMS sending from any number) seemed a real catch not so long ago. Everybody have just played with it but soon got tired. It's time to take the next step and figure out how to call and talk to somebody using some spontaneous number. And also try to figure out how to intercept the voice traffic, pick a password for a SIP-provider account and just make the best use of remarkable VoIP technology at the same time.
