Call forwarding status monitor
OwnerKyl E. Shearerinventor
Life of this patent
Estimating the term…
Abstract
A call forwarding status monitor for acknowledging the properly dialed DTMF or touch tone keypad indicating that a telephone line has been forwarded to another telephone number. The monitor connects to an available modular telephone jack at the subscribers location and registers the dialed numbers. Once the proper activation (or de-activation) sequence has been dialed, the monitor will provide a positive indication that the call has been forwarded. The indication is in the form of a visible light and/or an alphanumeric display in order to positively verify that the proper number has been entered.
Claims3
A device for monitoring the call forwarding status of a telephone line comprising:
- a housing;
- first connection means extending from said housing for connecting said housing to the telephone line;
- second connection means extending from said housing for supplying electrical power to said housing;
- a decoder, having an input and an output, coupled to said first connection means for convening touch tone signals at said input into binary codes at said output;
- memory means coupled to said output of said decoder, for receiving the binary codes, said binary codes selecting address locations of said memory means, and accessing said address locations in a sequence based upon the touch tone signals;
- latch means responsive to said memory means for latching a proper sequence of accessed address location sequences from said binary codes;
- indication means responsive to said latch means for indicating when the proper sequence of said address locations has been accessed;
- a switch for selectively overriding a preset sequence to establish alternative dialing sequences for activation and de-activation;
- counter means for setting dial numbers in proper cadence;
- and
- a hex bus driving means for maintaining output of said counter means off-line unless reprogramming of the forwarding control sequence is initiated.
Dependencies are inferred from the claim text.