VOIP spam?
VOIP has been around the IP block for a few years. It’s still a confusing entity as to exactly what technologies are involved with it. Voice over IP is the routing of voice conversations over the Internet through any IP-based network. Under that definition that could include Instant Messaging (a.k.a. VOIM) such as MSN, Yahoo, Gtalk…
They use their own proprietary protocols, as does skype. VOIP has its own standard protocols primarily for Quality of Service, e.g. SIP. There are a number of commerce and open-software VOIP solutions. Some traverse into PSTN.
Anyways enough of the introduction, an issue that raring its ugly head is VOIP spam as explained by zdnet and connect.