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Is that possible?
It's technically possible to connect two telephone handsets over an IP network, and the equipment exists. Unless you only want to talk to another parsimonious geek, you're going to end up paying a subscription to somebody to provide directory function and a bridge to the voice telephony network at a location near enough to the subscriber you want to call to eliminate most of the usual calling charges.
gbj_tester
I've heard of VOIP, but I want a phone I can plug into the back of my wifi router and get free calls.
Is that possible?