Method of intercepting telecommunications

• US 5,920,611 A
• Filed: 09/30/1996
• Issued: 07/06/1999
• Est. Priority Date: 09/30/1996
• Status: Expired due to Fees

• Current Assignee: Nokia Siemens Networks GmbH & Company KG (Nokia Corporation)
• Original Assignee: Siemens Information And Communication Networks, Inc.
• Inventors: Howell, Robert Mark
• Primary Examiner(s): LOOMIS, PAUL A
• Application Number:
  US08/724,111
• Time in Patent Office: 1,009 Days
• Field of Search: 379/1, 379/7, 379/8, 379/34, 379/35, 379/201, 379/210, 379/211, 379/213, 379/214
• US Class Current: 379/35
• CPC Class Codes: H04M 1/56 Arrangements for indicating or recording the called number at the calling subscriber's set
• CPC Class Codes: H04M 1/57 Arrangements for indicating or recording the number of the calling subscriber at the called subscriber's set at the operator set in a manual exchange H04M5/20
• CPC Class Codes: H04M 3/2281 Call monitoring, e.g. for law enforcement purposes; Call tracing; Detection or prevention of malicious calls
• CPC Class Codes: H04M 3/36 Statistical metering, e.g. recording occasions when traffic exceeds capacity of trunks
• CPC Class Codes: H04M 3/54 Arrangements for diverting calls for one subscriber to another predetermined subscriber based on the calling party profile H04M3/42059; based on location H04M3/42348; based on presence H04M3/42365; to voice mail H04M3/53308

Abstract

A method of intercepting the incoming and outgoing calls of a telecommunications subscriber. The call activity of the telecommunications line of the subscriber is monitored by a call processor of a telecommunications switch and predetermined types of call activity are recorded by a recording device. The switch monitors the call activity of a second telecommunications line upon the detection of a predetermined call feature occurring for the subscriber and the recording device records predetermined types of call activity on the second line upon the monitoring of the second line. The switch may also switch, upon the detection of the predetermined call feature, from monitoring the call activity of the subscriber line to monitoring the call activity of the second line. The switch may also switch the recording device from recording the call activity of the subscriber line to recording the call activity of the second line. This may be done by switching the connection of the recording device from the subscriber line to the second line.

Claims

1. A method of intercepting a call on a telecommunications line, comprising the steps of:

a. monitoring the call activity on a telecommunications line;

b. determining whether or not call-forwarding is occurring on the telecommunications line; and

c. recording the call activity of the call-forwarded telecommunications line.

2. The method of claim 1, further comprising the step of continuing monitoring the call activity on the telecommunications line if it is determined that call-forwarding is not occurring on the telecommunications line.

3. The method of claim 1, further comprising the step of determining whether or not the call activity of the call-forwarded telecommunications line may be recorded.

4. The method of claim 1, wherein the step of recording comprises recording the call activity of the call-forwarded telecommunications line upon the meeting of predetermined criteria.

5. The method of claim 1, wherein the step of recording comprises monitoring the call activity on the call-forwarded telecommunications line and recording predetermined types of call activity.

6. The method of claim 1, wherein the call activity to be recorded comprises at least one call activity selected from the group consisting of signalling information, voice, data, image, and multimedia information.

7. The method of claim 1, wherein each telecommunications line comprises multiple transmission channels that are adapted to carry various types of call activity.

8. A method of intercepting a telecommunications call, comprising the steps of:

a. monitoring the call activity on a first telecommunications subscriber loop;

b. recording the call activity on the first telecommunications subscriber loop;

c. recording the call activity of a second telecommunications subscriber loop upon the detection of a predetermined call feature occurring for the first loop.

9. The method of claim 8, wherein the step of recording the call activity of the second telecommunications subscriber loop comprises switching from the recording of the call activity of the first loop to the recording of the call activity of the second loop.

10. The method of claim 8, wherein the predetermined call feature comprises call-forwarding to the second telecommunications subscriber loop.

11. The method of claim 8, wherein the step of recording the call activity of the second telecommunications subscriber loop comprises recording the call activity of the second loop upon the meeting of predetermined criteria.

12. The method of claim 8, wherein the step of recording the call activity of the second telecommunications subscriber loop comprises monitoring the call activity on the second telecommunications subscriber loop and recording predetermined types of call activity.

13. The method of claim 8, wherein the step of recording the call activity of the second telecommunications subscriber loop comprises monitoring a replication of the call activity on the second telecommunications subscriber loop and recording predetermined types of call activity on the second loop.

14. The method of claim 13, wherein the replication of the call activity on the second telecommunications subscriber loop contains additional information on the call activity on the second loop and the step of recording the call activity of the second telecommunications subscriber loop comprises recording predetermined types of additional information on the call activity.

15. A method of intercepting the incoming and outgoing calls of a telecommunications subscriber, comprising the steps of:

a. monitoring by a telecommunications switch the call activity of the telecommunications line of the subscriber;

b. recording by a recording device predetermined types of call activity on the subscriber telecommunications line;

c. monitoring by the telecommunications switch the call activity of a second telecommunications line upon the detection of a predetermined call feature occurring for the subscriber; and

d. recording by the recording device predetermined types of call activity on the second telecommunications line upon the monitoring of the second line.

16. The method of claim 15, further comprising the step of switching by the switch, upon the detection of a predetermined call feature occurring for the subscriber, from the monitoring of the call activity of the subscriber line to the monitoring of the call activity of the second line and from the recording of the call activity of the subscriber line to the recording of the call activity of the second line.

17. The method of claim 16, wherein the step of switching comprises switching the connection of the recording device from the subscriber telecommunications line to the second telecommunications line.

18. The method of claim 17, further comprising the step of notifying the recording device of the connection switching.

19. The method of claim 17, further comprising the step of notifying the recording device of the connection switching before the step of switching.

20. The method of claim 15, wherein the predetermined call feature comprises call-forwarding to the second telecommunications line.

21. The method of claim 15, wherein the step of recording call activity on the second telecommunications line comprises recording predetermined types of call activity from a replication of the call activity on the second line.

22. The method of claim 21, wherein the replication of the call activity on the second telecommunications line contains additional information on the call activity on the second line and the step of recording call activity on the second line comprises recording predetermined types of additional information on the call activity.

23. The method of claim 16, wherein the step of switching comprises replicating by the switch the call activity of the second telecommunications line and switching the connection of the recording device from the subscriber telecommunications line to the replication of the call activity of the second line.

24. The method of claim 23, wherein the replication of the call activity on the second telecommunications line contains additional information on the call activity on the second line and the step of recording call activity on the second line comprises recording predetermined types of additional information on the call activity.