Patent ID: 6657989
Filing Date: 2003-12-02
Classification: H04M,H04Q

Abstract:
Apparatus for routing telephone calls comprising:input means operable to receive an input signal representative of a user generated call number defining a user selected call destination; signal generating means operable to prefix the input signal with a prefix signal representative of a selected prefix code defining at least a network connection route selected from a plurality of available routes to the user selected call destination; memory means operable to store a decision table containing predetermined data for determining prefix codes corresponding to a plurality of respective call destinations; selecting means operable to obtain said selected prefix code corresponding to said user selected call destination by addressing the memory means; output means operable to output an output signal corresponding to the input signal prefixed by the prefix signal; receiving means operable to receive a wireless broadcast signal of updating information; and updating means operable to update the predetermined data stored in the decision table in accordance with the received updating information, wherein the updating means is operable to update the predetermined data in the decision table with updating information comprising network ID data identifying for a respective call destination a preferred route calculated by a control center from which the updating information is broadcast in use, and wherein the memory means further comprises a network table for obtaining the prefix code from the network ID.