Network and method for providing a call screening telecommunications service with automatic speech recognition capability

• US 6,826,529 B1
• Filed: 08/09/2000
• Issued: 11/30/2004
• Est. Priority Date: 08/09/2000
• Status: Expired due to Term

• Current Assignee: Open Invention Network LLC
• Original Assignee: Bellsouth Intellectual Property Corporation (AT&T, Inc.)
• Inventors: Knoerle, Joseph, Zhang, Zeeman
• Primary Examiner(s): Chawan, Vijay
• Assistant Examiner(s): Opsasnick, Michael N.
• Application Number:
  US09/635,167
• Time in Patent Office: 1,574 Days
• Field of Search: 704/251, 379/15.02
• US Class Current: 704/251
• CPC Class Codes: G10L 15/26 Speech to text systems G10L15/08 takes precedence
• CPC Class Codes: H04M 2201/40 using speech recognition
• CPC Class Codes: H04M 3/436 Arrangements for screening incoming calls , i.e. evaluating the characteristics of a call before deciding whether to answer it based on the calling party profile H04M3/42059; based on location H04M3/42348; based on presence H04M3/42365; diversion H04M3/54

Abstract

A network for providing a telecommunications service with automatic speech recognition to a telecommunications user, including a switch in communication with a telecommunications device associated with the telecommunications user for detecting a trigger specific to the telecommunications service in response to a communication to the telecommunications user from a calling party, and an intelligent resource server in communication with the switch for receiving from the switch the communication to the telecommunications user, for playing an audible message for the calling party in response to receiving the communication, the message prompting the calling party to identify itself to the telecommunications user, and for automatically recognizing a predetermined keyword spoken by the calling party in response to the audible message.

Claims

1. A network for providing a call screening telecommunications service with automatic speech recognition to a telecommunications user, comprising:

a switch in communication with a telecommunications device associated with the telecommunications user for detecting a trigger specific to the call screening telecommunications service in response to a communication to the telecommunications user from a calling party with one of a blocked number and an unknown number; and

an intelligent resource server in communication with the switch, wherein the intelligent resource server is

for receiving from the switch the communication to the telecommunications user,

for playing a first audible message for the calling party in response to receiving the communication, the first audible message prompting the calling party to identify itself to the telecommunications user, for automatically recognizing a predetermined keyword spoken by the calling party in response to the audible message, and for terminating the communication when the calling party does not identify itself, and

for playing a second audible message for the telecommunications user and for placing an outgoing communication to the calling party based on recognition of a predetermined keyword spoken by the telecommunications user in response to the second audible message, the second audible message containing an identifying information regarding the calling party and prompting the telecommunications user to place the outgoing communication to the calling party.

2. The network of claim 1, wherein the switch includes a switch of a central office in communication with the telecommunications device via a subscriber line.

3. The network of claim 1, wherein the switch includes a switch of a mobile switching center in communication with the telecommunications device via an air-interface communication scheme.

4. The network of claim 1, further comprising a service control point in communication with the switch.

5. The network of claim 4, wherein:

the switch is further for sending a query message to the service control point in response to detecting the trigger; and

the service control point is for returning a message to the switch to route the communication from the calling party to the intelligent resource server.

6. The network of claim 5, wherein the service control point is further for returning the message to the switch to route the communication to the intelligent resource server based on a determination of whether the telecommunications user is a subscriber of the call screening telecommunications service.

7. The network of claim 4, wherein the intelligent resource server is further for forwarding the communication to the telecommunications user with information identifying the calling party based on recognition of the predetermined keyword spoken by the calling party in response to the audible message.

8. The network of claim 4, wherein the intelligent resource server is further for forwarding the communication to the telecommunications user with information identifying the calling party based on recognition of a predetermined DTMF character entered by the calling party in response to the audible message.

9. A network for providing a call screening telecommunications service with automatic speech recognition to a telecommunications user, comprising:

a switch in communication with a telecommunications device associated with the telecommunications user for detecting a trigger specific to the call screening telecommunications service in response to a communication to the telecommunications user from a calling party with one of a blocked number and an unknown number;

a call processing module in communication with the switch for receiving from the switch the communication to the telecommunications user;

an enunciation module in communication with the call processing module for playing a first audible message for the calling party in response to receiving the communication, the first audible message prompting the calling party to identify itself to the telecommunications user; and

an automatic speech recognition module in communication with the switch for recognizing a predetermined keyword spoken by the calling party in response to the audible message,

wherein the call processing module is further in communication with the automatic speech recognition module and is further for terminating the communication when the calling party does not identify itself and

wherein the enunciation module is further for playing a second audible message for the telecommunications user and the call processing module is further for placing an outgoing communication to the calling party based on recognition of a predetermined keyword spoken by the telecommunications user in response to the second audible message, the second audible message containing an identifying information regarding the calling party and prompting the telecommunications user to place the outgoing communication to the calling party.

10. The network of claim 9, wherein the switch includes a switch of a central office in communication with the telecommunications device via a subscriber line.

11. The network of claim 9, wherein the switch includes a switch of a mobile switching center in communication with the telecommunications device via an air-interface communication scheme.

12. The network of claim 9, further comprising a service control point in communication with the switch.

13. The network of claim 12, wherein:

the switch is further for sending a query message to the service control point in response to detecting the trigger; and

the service control point is for returning a message to the switch to route the incoming communication to the call processing module.

14. The network of claim 13, wherein the service control point is further for returning the message to the switch to route the incoming communication to the call processing module based on a determination of whether the telecommunications user is a subscriber of the call screening telecommunications service.

15. The network of claim 12, wherein the call processing module is further for forwarding the communication to the telecommunications user with information identifying the calling party based on recognition of the predetermined keyword by the automatic speech recognition module in response to the audible message.

16. The network of claim 9, further comprising a DTMF decoder module in communication with the switch for recognizing a predetermined DTMF character entered by the calling party in response to the audible message.

17. The network of claim 16, wherein the call processing module forwards the communication to the telecommunications user with information identifying the calling party based on recognition of the predetermined DTMF character by the DTMF decoder module in response to the audible message.

18. An intelligent resource server for providing a call screening telecommunications service with automatic speech recognition for a telecommunications user, comprising:

a call processing module for receiving from a switch in communication with a telecommunications device associated with the telecommunications user a communication to the telecommunications user from a calling party with one of a blocked number and an unknown number;

an enunciation module in communication with the call processing module for playing a first audible message for the calling party in response to receiving the communication, the first audible message prompting the calling party to identify itself to the telecommunications user; and

an automatic speech recognition module in communication with the switch for recognizing a predetermined keyword spoken by the calling party in response to the audible message,

wherein the call processing module is further in communication with the automatic speech recognition module and is further for terminating the communication when the calling party does not identify itself and

wherein the enunciation module is further for playing a second audible message for the telecommunications user and the call processing module is further for placing an outgoing communication to the calling party based on recognition of a predetermined keyword spoken by the telecommunications user in response to the second audible message, the second audible message containing an identifying information regarding the calling party and prompting the telecommunications user to place the outgoing communication to the calling party.

19. The intelligent resource server of claim 18, wherein the call processing module is further for forwarding the communication to the telecommunications user with information identifying the calling party based on recognition of the predetermined keyword by the automatic speech recognition module in response to the audible message.

20. The intelligent resource server of claim 19, further comprising a DTMF decoder module in communication with the switch for recognizing a predetermined DTMF character entered by the calling party in response to the audible message.

21. The network of claim 20, wherein the call processing module is further for forwarding the communication to the telecommunications user with information identifying the calling party based on recognition of the predetermined DTMF character by the DTMF decoder module.

22. A method for providing a call screening telecommunications service with automatic speech recognition to a telecommunications user, comprising:

detecting a communication to the telecommunications user from a calling party with one of a blocked number and an unknown number;

playing a first audible message to the calling party in response to detection of the communication prompting the calling party to identify itself to the telecommunications user;

recognizing a predetermined keyword spoken by the calling party in response to the first audible message;

terminating the communication when the calling party does not identify itself;

playing a second audible message to the telecommunications user, the second audible message containing an identifying information regarding the calling party and prompting the telecommunications user to place an outgoing communication to the calling party,

recognizing a predetermined keyword spoken by the telecommunications user in response to the second audible message, and

placing the outgoing communication to the calling party.

23. The method of claim 22, wherein playing an audible message includes playing the audible message when it is determined that the telecommunications user is a subscriber of the call screening telecommunications service.

24. The method of claim 22, further comprising forwarding the communication to the telecommunications user with information identifying the calling party based on recognition of the predetermined keyword.

25. The method of claim 22, further comprising recognizing a predetermined DTMF character entered by the calling party in response to the audible message.

26. The method claim 25, further comprising forwarding the communication to the telecommunications user with information identifying the calling party based on recognition of the predetermined DTMF character.

27. A network for providing a call screening telecommunications service with automatic speech recognition to a telecommunications user, comprising:

means for detecting a communication to the telecommunications user from a calling party with one of a blocked number and an unknown number;

means for playing a first audible message to the calling party in response to detection of the communication prompting the calling party to identify itself to the telecommunications user;

means for recognizing a predetermined keyword spoken by the calling party in response to the first audible message;

means for terminating the communication when the calling party does not identify itself;

means for playing a second audible message to the telecommunications user, the second audible message containing an identifying information regarding the calling party and prompting the telecommunications user to place an outgoing communication to the calling party;

means for recognizing a predetermined keyword spoken by the telecommunications user in response to the second audible message, and

means for placing the outgoing communication to the calling party.

28. The network of claim 27, wherein the means for playing an audible message includes means for playing the audible message when it is determined that the telecommunications user is a subscriber of the call screening telecommunications service.

29. The network of claim 27, further comprising means for forwarding the communication to the telecommunications user with information identifying the calling party based on recognition of the predetermined keyword.

30. The network of claim 27, further comprising means for recognizing a predetermined DTMF character entered by the calling party in response to the audible message.

31. The network of claim 30, further comprising means for forwarding the communication to the telecommunications user with information identifying the calling party based on recognition of the predetermined DTMF character.