Telecommunications systems

• US 4,578,540 A
• Filed: 12/20/1982
• Issued: 03/25/1986
• Est. Priority Date: 12/20/1982
• Status: Expired due to Term

• Current Assignee: Bell Telephone Laboratories, Inc. (Nokia Corporation)
• Original Assignee: AT&T, Inc.
• Inventors: White, Lester L., Halas, William P., Mattes, Hans G., Borg, Kevin E., McLear, Paul M.
• Primary Examiner(s): NOT, DEFINED
• Application Number:
  US06/451,235
• Time in Patent Office: 1,191 Days
• Field of Search: 179/2 A, 179/2 AM, 179/5 R, 179/5 P, 179/5.5, 179/6.03, 179/6.07, 179/6.13, 179/6.16, 179/18 B, 179/18 DA, 179/27 FG, 179/27 FH, 179/81 B, 179/81 R , 179/84 A, 179/84 R, 179/84 C, 179/90 B, 179/90 BD, 179/99 R, 179/2 DP, 179/99 A, 179/99 H, 179/84 SS, 179/84 T
• US Class Current: 379/40
• CPC Class Codes: H04M 1/66 with means for preventing unauthorised or fraudulent calling verifying user identity or authority in secret or secure digital communications H04L9/32
• CPC Class Codes: H04M 1/665 by checking the validity of a code
• CPC Class Codes: H04M 1/715 using two or more extensions per line cordless telephones H04M1/725
• CPC Class Codes: H04M 3/42314 in private branch exchanges
• CPC Class Codes: H04M 9/02 involving a common line for all parties
• CPC Class Codes: Y10S 379/909 Alternatives
• CPC Class Codes: Y10S 379/911 Distinctive ringing
• CPC Class Codes: Y10S 379/914 Programmable telephone component

Abstract

A telecommunications system is disclosed which is user programmable permitting inter and intrapremises communications from existent two-wire telephone extension sets at a customer'"'"'s premises. The system may be functionally described as a telephone call interceptor comprising a number of building blocks for providing a plurality of features which the existent telephone extension sets may not be capable of by themselves. A data processor (110) receives data input from an incoming ringing signal detector (140), a telephone signal receiver (115), a dial tone detector (160) or from an associated user-activatable data input device (117). Responsive to the data input, the data processor provides output through a speech processor (150), a telephone signal generator (116), a ring generator (119) or through an associated data output device (113) such as a loudspeaker. A peripheral device interface (114) connects data processor (110) to security, utility meter, fire detection, energy control, appliance and other devices.

Claims

1. A telecommunications system for connection to a telephone network

CHARACTERIZED BY

means for intercepting telephone calls to and from the telephone network, the intercepting means connected between the telephone network and a single pair of conductors to which one or more telephone station sets are connected in parallel, the station sets having signal generating means, said intercepting means comprising

means for receiving address and command signals from the telephone station sets over the single pair of conductors,

data processing means responsive to the address of command signals receiving means,

means responsive to said data processing means for controlling the connection of the telephone station sets to the telephone network, and

means for powering the telephone station sets.

2. A telecommunications system as recited in claim 1

FURTHER CHARACTERIZED BY

means for providing a voice message, the data processing means selecting the contents of the voice message responsive to the address and command signals receiving means.

3. A telecommunications system as recited in claim 1

FURTHER CHARACTERIZED BY

means for holding an incoming telephone call, the data processing means actuating the call holding means responsive to the address and command signals receiving means.

4. A telecommunications system as recited in claim 1

FURTHER CHARACTERIZED BY

means for generating telephone signals,

the data processing means, responsive to the address and command signals receiving means, actuating the telephone signal generating means for placement of an outgoing call when the address and command signals receiving means has received appropriate signals.

5. A telecommunications system as recited in claim 1

FURTHER CHARACTERIZED BY

means for generating telephone ringing signals for application to the telephone station sets,

the data processing means, responsive to the address and command signals receiving means, actuating the telephone ringing signal generating means to apply distinctive ringing to the telephone station sets.

6. A telecommunications system as recited in claim 1

FURTHER CHARACTERIZED BY

means for detecting the flow of current to the telephone station sets,

the data processing means supervising the address and command signals receiving means responsive to the current flow detection means.

7. A telecommunications system as recited in claim 1

FURTHER CHARACTERIZED BY

means for detecting the transmission of telephone ringing signals from the telephone network toward the telephone station sets, the data processing means providing one of a plurality of operating modes responsive to the detection of telephone ringing signals, one operating mode involving the actuation of relay means for controlling the connection of the telephone station sets to the telephone network.

8. A telecommunications system as recited in claim 7

FURTHER CHARACTERIZED BY

a real time clocking means associated with the data processing means, the data processing means providing the plurality of operating modes responsive to the real time clocking means and to the address and command signals receiving means.

9. In a telecommunications system for connection between a telephone network and at least one telephone station set having means for generating address and command signals

means for receiving address and command signals from both the network and the telephone station set,

data processing means responsive to the address and command signals receiving means, and

means responsive to the data processing means for controlling the connection of the telephone station set to the telephone network.

10. The system according to claim 9 wherein the address signal includes a security code and a destination code, the system further including

means associated with the data processing means for storing security codes and destination codes accessible by each security code,

the data processing means comparing the security code and destination code of the address signal with the stored codes and actuating the means for controlling connections to the telephone network responsive to the security code and the destination code of the address signal matching the stored code, whereby the destination codes that may be accessed are determined by the security code of the address signal.

11. The system according to claim 9 further including

means, responsive to the data processing means, for ringing the telephone station set in a distinctive manner.

12. The system according to claim 9

further including

a peripheral device interface responsive to the data processing means for interfacing with at least one peripheral device responsive to a particular command signal.

13. In a telecommunications system, means for controlling connections to a telephone network

CHARACTERIZED IN THAT

the controlling means has first and second modes of operation, a first mode for controlling calls to the telephone network and a second mode for controlling calls from the telephone network, the controlling means including

a signal receiver for receiving address and command signals in both the first and second modes of operation,

a data processor responsive to the signal receiver,

a memory associated with the data processor for storing precoded binary data, the data processor converting the address and command signals to binary data for comparison with the precoded binary data, and

an address or command signal generator responsive to the data processor.

14. A telecommunications system for connection to a telephone network

CHARACTERIZED BY

means for intercepting telephone calls to and from the telephone network, the intercepting means comprising

data processing means having memory,

means for controlling connection to the telephone network,

means for receiving dial or other service request signals, and

peripheral device interface connecting the data processing means to security and fire alerting devices, utility meters, thermostats, appliances or other devices,

the data processing means actuating the means for controlling connection to the telephone network, the data processing means being responsive to entry at the dial or other service request signal receiving means of a particular service request code or being responsive to data provided by the peripheral device interface.

15. A telecommunications system for connection to a telephone network as recited in claim 14

FURTHER CHARACTERIZED BY

a ring generator connectable to extension telephone sets of the telecommunications system and

outcalling means for placing a telephone call to the telephone network from the telecommunications system,

the outcalling means and ring generator being so electrically connected as to be simultaneously actuable by the data processing means.

16. A telecommunications system for connection between a telephone network and at least one telephone station set

CHARACTERIZED BY

a signal receiver for receiving signals from the network and the telephone station set

a ring generator for applying a ringing signal to the telephone station set and

a data processor having memory and an associated clock for controlling the ring generator responsive to the signal receiver

means for entering data to data processor

the ring generator providing distinctive ringing of the telephone station set responsive to a particular signal being received by the signal receiver.

17. A telecommunications system for connection to a telephone network

CHARACTERIZED BY

means for intercepting telephone calls to and from the telephone network, the intercepting means connected between at least one telephone station set having signal generating means and the telephone network, said intercepting means comprising

means for receiving address and command signals from the telephone station set or the telephone network, at least one such command signal being predetermined and comprising a service request code and a data entry illegal as an address signal, and

data processing means responsive to the signal receiving means, the data processing means in one mode recognizing the predetermined signal and initiating a service corresponding to the service request code, and in a second mode initiating a connection to the network.