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.
TELEflash is a registred Carrier in Germany with his own Portingcode, own Hardware and with dedicated Peeringconnections to other german Carriers. We also offer MVNO-Services with german SIM-Cards.