Conditional autodialer

DETAILED DESCRIPTION What is claimed is: 1.
A conditional autodialer adapted to selectively automatically dial a predetermined telephone number on a telephone line including at least one telephone set, after a predetermined delay period following an on-hook to off-hook transition on the telephone line, said conditional autodialer comprising: A) an off-hook detector coupled to the telephone line for detecting off-hook and on-hook conditions thereon; B) a touch tone detector coupled to the telephone line for detecting a DTMF tone placed on the line during the predetermined delay period; C) memory means for storing a predetermined telephone number; D) a dialer coupled to the telephone line; and E) a controller coupled to receive signals from said off-hook detector and said touch tone detector, to communicate with said memory and to provide signals to said dialer, said controller being adapted to: 1) respond to an on-hook to an off-hook transition on the telephone line for instituting a predetermined delay period; 2) respond to time-out of the predetermined delay period by reading the predetermined telephone number from said memory and enabling said dialer to dial the predetermined number onto the telephone line; and 3) respond to a DTMF digit placed on the telephone line during the predetermined delay period by preventing the performance of response E)2).
2.
The conditional autodialer of claim 1 which further includes a ring detector coupled to the telephone line for detecting an incoming call on the line during the predetermined time period and in which said controller is coupled to receive signals from said ring detector and is further adapted to respond to an incoming call sensed on the telephone line during the predetermined time period by preventing the performance of response E)2).
3.
The conditional autodialer of claim 1 in which the predetermined telephone number stored in said memory means is programmable from the telephone set.
4.
The conditional autodialer of claim 2 in which the predetermined telephone number stored in said memory means is programmable from the telephone set