A telephone capable of placing or receiving calls over the PSTN or a packet network. The telephone can store multiple telephone numbers for each potential called party along with preferences that govern the order of selecting telephone numbers to service any given outgoing call. Some or all of the telephone...http://www.google.fr/patents/US7492758?utm_source=gb-gplus-shareBrevet US7492758 - Wireless telephone system including voice over IP and POTS
Wireless telephone system including voice over IP and POTS
