This is Wiki's take on Spoofing:
Caller ID spoofing
Main article: Caller ID spoofing
In public telephone networks, it has for a long while been possible to find out who is calling you by looking at the Caller ID information that is transmitted with the call. There are technologies that transmit this information on landlines, on cellphones and also with VoIP. Unfortunately, there are now technologies (especially associated with VoIP) that allow callers to lie about their identity, and present false names and numbers, which could of course be used as a tool to defraud or harass. Because there are services and gateways that interconnect VoIP with other public phone networks, these false Caller IDs can be transmitted to any phone on the planet, which makes the whole Caller ID information now next to useless. Due to the distributed geographic nature of the Internet, VoIP calls can be generated in a different country to the receiver, which means that it is very difficult to have a legal framework to control those who would use fake Caller IDs as part of a scam.
Again, I have my Name and NUMBER BLOCKED through Vonage, so those that have called me back would NOT be able to if I had called.
No OUTBOUND numbers have been showing up on my online Vonage statement.
It goes back 5-6 years. I had it since about 6 months from their inception with another number until about 3 months ago with no other issues.
I am NOT in the SCOTTSVILLE area.