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.
WavNet Communications, Inc., (WavNet-US) designs, supplies and operates fixed wireless broadband networks for service delivery of voice, video and data services utilizing WiMAX technology