Patent ID: 6137877
Filing Date: 2000-10-24
Classification: H04M

Abstract:
A telephone dialing device adapted for insertion and operation between a telephone and a telephone access line for selectively routing a dialed telephone number comprising:(a) a first connector for connection to the telephone;(b) a receiver connected to the first connector for intercepting and decoding a dialed telephone number having a plurality of digits;(c) a memory for storing at least one access code and at least one preselected sequence;(d) a controller connected to the receiver and the memory for comparing at least one of the digits of said intercepted number to at least one preselected sequence and for generating a first dialing sequence to route the dialed telephone number through a first alternate carrier if said compared digits are in agreement with the first preselected sequence and for dialing the telephone number if the compared digits are not in agreement, wherein the first dialing sequence comprises an access code corresponding to a first preselected sequence for specifying the first alternate carrier; and(e) a DTMF transmitter coupled to the controller for transmitting a specified dialing sequence and a tone detect circuit coupled to the controller for detecting the status of the telephone access line, such that the specified dialing sequence is transmitted to the telephone access line by flashing the telephone access line and re-transmitting the specified dialing sequence upon detecting a busy signal on the telephone access line.