When you receive an incoming call to your phone number, your other telephones (cell, home phone, car phone) will ring as well and the first one answered will be connected to the caller. Basically the call will be routed to all phone sets, which you will list in simultaneous ring option.
InteleFone is one step ahead of the Future. Its advanced VoIP technology has brought Internet telephone service to the entire world and in many cases is literally saving individuals and businesses dollars per minute!