Patent ID: 8107606

Claim:
A system adding a alpha-numeric dialing functionality including alphabetic dialing to a first plurality of caller communication devices which can be dialed only numerically to a second plurality of telephone numbers, the first plurality of caller communication devices being interconnected via a communication network which supports dialing from the first plurality of caller communication devices to a second plurality of telephone numbers, the system comprising: apparatus for installing software in at least one SIM cards configured to reside respectively in at least one of the first plurality of communication devices; and a resolver server communicating with the communication network, storing a second plurality of call-names respectively corresponding to said second plurality of telephone numbers, and being operative for receiving an individual one of said second plurality of call-names dialed by an individual one of said first plurality of communication devices and for sending an individual one of said second plurality of telephone numbers corresponding to said individual one of said second plurality of call-names to said software installed on said individual one of said first plurality of communication devices, and wherein the software is operative for receiving, from said resolver server, said individual one of said second plurality of telephone numbers, and for establishing a telephone connection from said individual one of said first plurality of communication devices to said individual one of said second plurality of telephone numbers.