Telephone network performance monitoring method and system

• US 5,448,624 A
• Filed: 01/14/1993
• Issued: 09/05/1995
• Est. Priority Date: 08/22/1990
• Status: Expired due to Term

• Current Assignee: Verizon Patent and Licensing Incorporated (Verizon Communications Inc.)
• Original Assignee: MCI Communications Corporation (Verizon Communications Inc.)
• Inventors: Johnson, Thomas H. Jr., Hardy, William C.
• Primary Examiner(s): Dwyer, James L.
• Assistant Examiner(s): TSANG, FAN S
• Application Number:
  US08/002,876
• Time in Patent Office: 964 Days
• Field of Search: 379/67, 379/88, 379/89, 379/69, 379/79, 379/113, 379/34, 379/133, 379/134, 379/135, 379/372, 379/386, 379/399, 379/5, 379/6, 379/23, 379/31
• US Class Current: 379/67.1
• CPC Class Codes: H04M 2201/40 using speech recognition
• CPC Class Codes: H04M 3/323 for the arrangements providing the connection (test connection, test call, call simulation)
• CPC Class Codes: H04M 3/36 Statistical metering, e.g. recording occasions when traffic exceeds capacity of trunks
• CPC Class Codes: H04M 3/487 Arrangements for providing information services, e.g. recorded voice services or time announcements
• CPC Class Codes: H04M 3/51 Centralised call answering arrangements requiring operator intervention , e.g. call or contact centers for telemarketing
• CPC Class Codes: H04M 3/523 with call distribution or queueing

Abstract

The present invention automatically initiates a telephone call to a given destination. At the same time, the progress of the call is monitored. The time of a ring back and voice answer received from the destination are recorded to an output file. At the end of the voice answer, a pre-recorded voice message is sent by the system to the person answering at the destination. Thereafter, the recorded data is used to determine the response time for that particular telephone destination. A plurality of destinations can be tested. A second embodiment of the present invention provides for the interactive correspondence between a remote evaluation unit and a called destination and the measurement of the performance characteristics of the telephone network.

Claims

1. A telephone call progress evaluation apparatus, comprising;

means for automatically placing a call to at least one destination at a certain time according to a schedule;

means for monitoring the progress of said call;

means for discriminating any one of various possible progress tones and responses from said destination;

means for corresponding with said destination, said corresponding means continues to correspond with said destination until a perceived final response is received from said destination;

means for recording the time of occurrence of said any response;

means for recording at least one portion of said any response, said one portion contributable to the selection of an appropriate reply to said any response during communication between said corresponding means and said destination;

means for storing said reply;

wherein said recording means further records any progress tone discriminated by said discriminating means and said storing means stores said any progress tone recorded by said recording means, said apparatus further comprising;

means for converting said occurrence time, tone and response to respective data;

means for compressing said data to provide for compact storage and transport.

2. The apparatus of claim 1, further comprising:

means communicating with a remote control unit for transporting said data compressed by said compressing means to said control unit.

3. The apparatus of claim 2, wherein said remote control unit comprises:

means for utilizing said data compressed by said compressing means to generate reports to evaluate at least the responsiveness of said destination;

means for storing said reports for future reference.

4. The apparatus of claim 1, wherein said progress tones and responses comprise:

at least dial tone signal, busy signal, ring back signal, bong signal, beep signal, PBX signal, responder signal, fax signal, modem signal, and voice.

5. A system for evaluating a telephone network, comprising:

(a) at least one call progress evaluation unit for automated telephone call testing having

means for automatically placing a call to at least one destination at a certain time according to a schedule;

means for monitoring the progress of said call;

means for discriminating any occurring progress tones and any response from said destination; and

neans for interactively corresponding with said destination;

(b) means for storing said any response as data; and

(c) a data collecting and analyzing unit remotely located from said evaluation unit having

means remotely communicating with said evaluation unit for retrieving data at least representative of said any response from said destination; and

means utilizing said data retrieved by said remotely communicating means and representative of said any response from said destination to determine predefined characteristics of said telephone network relating to said at least one destination.

6. The system of claim 5, wherein said monitoring means further comprises:

means for recording the time of occurrence of said any response;

means for recording at least one portion of said any response, said one portion contributable to the selection of an appropriate reply to said response during communication between said interactive corresponding means and said destination;

means for storing said reply.

7. The system of claim 6, wherein said recording means further records any progress tone discriminated by said discriminating means and said storing means stores said any progress tone recorded by said recording means, said system comprising:

means for converting said occurrence time tone and response to respective data;

means for compressing said data to provide for compact storage and transport.

8. The system of claim 5, wherein said progress tones and response comprise:

at least dial tone signal, busy signal, ring back signal, bong signal, beep signal, PBX signal, responder signal, ;

fax signal, modem signal, and voice.

9. The system of claim 5, wherein said discrimination means comprises a plurality of programmable filters.

10. A method of evaluating characteristics of a telephone network, comprising the steps of:

(a) storing a schedule of calls to be made to selected destinations at respective predetermined times;

(b) placing a call to one of said destinations;

(c) monitoring the progress of said call;

(d) discriminating any occurring progress tones and any responses from said destination;

(e) corresponding with said destination in response to any response from said destination until a perceived final response is received from said destination;

(f) recording said any response from said destination; and

(g) utilizing said recorded response to evaluate the characteristics of said telephone network.

11. The method of claim 10, further comprising the steps of:

(h) recording at least one portion of said any response during step (e) ;

(i) using said one portion to contribute to the selection of an appropriate reply to said any response during step (e).

12. The method of claim 10, further comprising the steps of:

(j) recording the time of occurrence of said any response;

(k) recording any progress tone;

(l) converting said recorded time, tone and response to respective data;

(m) compressing said data to provide for compact storage and transport.

13. The method of claim 12, further comprising the steps of:

(n) transporting said data to a remote control unit;

(o) utilizing said transported data to generate reports to evaluate at least the responsiveness of said destination to calls;

(p) storing said reports for future reference.

14. The method of claim 10, wherein said step (e) further includes the step of generating reports indicative of at least the responsiveness of said destination to calls directed thereto.