VOIP to real phone with NO VOIP provider - possible ?

[osirisjem]

OK. I know Vonage offers VOIP to real phones, but you pay for it.

I dont want to pay for the service.
Sure I'll buy some hardware.

I suspect I have to pay for some service, but do I ?


Viper IP Phone Adapter

http://www.tigerdirect.ca/applications/SearchTools/item-details.asp?EdpNo=984431&CatId=1626

If I had this, would I still need a VOIP service provider ?

 

[osirisjem]

Of course it isnt possible.

http://www.dslreports.com/faq/voip

Specifically -
http://www.dslreports.com/faq/4241