Automatic redial memory device for telephones

Claim 1

An automatic telephone redial device for use with a telephone communication network for automatically redialing a predetermined telephone number at random or at a preselected one of a plurality of time intervals comprising: a. a local electronic memory for storing a predetermined number; b. encoder means coupled to said local electronic memory for converting groups of serial electric signals representative of digital numbers to groups of electric signals representative of binary coded decimal numbers; c. coupling means for coupling said local electronic memory to a telephone switching network; d. transmitting meaNs coupled to said coupling means for transmitting the stored number in said local memory to said telephone switching network; e. time-interval-select means coupled to said transmitting means for selecting one of a plurality of time intervals; f. first disconnect means coupled to said transmitting means and to said time-interval-select means for disconnecting said local electronic memory from said telephone switching network when a busy signal is detected in said telephone switching network; g. clock interval timing means coupled to said transmitting means and to said time-interval-select means for automatically transmitting and retransmitting the stored number in said local electronic memory to said telephone switching network at a preselected one of a plurality of time intervals, whereby the predetermined number selected for automatic dialing is automatically dialed and, upon detection of a busy signal, is redialed after the preselected time interval has elapsed.

Claim 11

A method of automatically redialing a telephone number coMprising the steps of: a. dialing a predetermined number producing groups of electronic pulses representative of the decimal numbers dialed; b. encoding said groups of electronic pulses representative of the decimal number, into binary coded decimal numbers; c. storing said binary coded decimal numbers in a local memory; d. electronically coupling the local memory with a telephone switching network; e. automatically decoupling the local memory from the telephone switching network when the telephone of the number dialed is busy; f. selecting one of a plurality of predetermined time intervals for automatically redialing the predetermined number; g. automatically transmitting and retransmitting at a preselected one of a plurality of time intervals the number stored in the local memory to the telephone switching network, whereby the predetermined number selected for automatic dialing is automatically dialed and, upon detection of a busy signal is automatically redialed at a preselected one of a plurality of time intervals.

Claim 12

A method of automatically redialing a telephone number coMprising the steps of: a. dialing a predetermined number producing groups of electronic pulses representative of the decimal numbers dialed; b. encoding said groups of electronic pulses representative of the decimal number, into binary coded decimal numbers; c. storing said binary coded decimal numbers in a local memory; d. electronically coupling the local memory with a telephone switching network; e. automatically decoupling the local memory from the telephone switching network when the telephone of the number dialed is busy; f. selecting one of a plurality of predetermined time intervals for automatically redialing the predetermined number; g. automatically transmitting and retransmitting at a preselected one of a plurality of time intervals the number stored in the local memory to the telephone switching network, whereby the predetermined number selected for automatic dialing is automatically dialed and, upon detection of a busy signal is automatically redialed at a preselected one of a plurality of time intervals.

Claim 14

A method of automatically redialing a telephone number comprising the steps of: a. dialing a predetermined number producing groups of electronic pulses representative of the decimal numbers dialed; b. encoding said groups of electronic pulses representative of the decimal number into binary coded decimal numbers; c. storing said binary coded decimal numbers in a local memory; d. electronically coupling the local memory with a telephone switching network; e. transmitting the number stored in a local memory to the telephone switching network; f. decoding the stored binary coded decimal number into groups of electronic pulses representative of the binary coded decimal number; g. automatically decoupling the local memory from the telephone switching network after a predetermined time interval when the telephone of the number dialed is not answered; h. selecting one of a plurality of predetermined time intervals for automatically redialing the predetermined number; and, i. automatically redialing the predetermined number at said selected one of a plurality of predetermined time intervals.

Claim 15

A method of automatically redialing a telephone number comprising the steps of: a. dialing a predetermined number producing groups of electronic pulses representative of the decimal numbers dialed; b. encoding said groups of electronic pulses representative of the decimal number into binary coded decimal numbers; c. storing said binary coded decimal numbers in a local memory; d. electronically coupling the local memory with a telephone switching network; e. transmitting the number stored in a local memory to the telephone switching network; f. decoding the stored binary coded decimal number into groups of electronic pulses representative of the binary coded decimal number; g. automatically decoupling the local memory from the telephone switching network after a predetermined time interval when the telephone of the number dialed is not answered; h. selecting one of a plurality of predetermined time intervals for automatically redialing the predetermined number; and, i. automatically redialing the predetermined number at said selected one of a plurality of predetermined time intervals.