System and method for simultaneous ring service with centralized subscription data

• US 6,694,004 B1
• Filed: 12/28/2000
• Issued: 02/17/2004
• Est. Priority Date: 12/28/2000
• Status: Expired due to Term

• Current Assignee: Open Invention Network LLC
• Original Assignee: Bellsouth Intellectual Property Corporation (AT&T, Inc.)
• Inventors: Nguyen, Hong, Griffiths, Michael, Knoerle, Joseph Michael, Zhang, Zeeman
• Primary Examiner(s): Hong, Harry S.
• Assistant Examiner(s): LE, KAREN L
• Application Number:
  US09/749,824
• Time in Patent Office: 1,146 Days
• Field of Search: 379/211.04, 379/211.02
• US Class Current: 379/211.04
• CPC Class Codes: H04M 2201/12 Counting circuits
• CPC Class Codes: H04M 2207/206 composed of PSTN and wireless network
• CPC Class Codes: H04M 3/465 Arrangements for simultaneously calling a number of substations until an answer is obtained
• CPC Class Codes: H04Q 3/005 Personal communication services, e.g. provisions for portability of subscriber numbers

Abstract

A system and method for providing simultaneous ringing service to a plurality of customer premises equipment. The method and system utilize a centralized database of subscriber information and a service node to make multiple outbound calls from the service node to multiple telephone lines assigned to a subscriber. The subscriber'"'"'s telephone lines may include one or more wireless lines. Inbound calls to the subscriber'"'"'s primary wireline are intercepted by the simultaneous ringing service and forwarded to the service node for processing.

Claims

1. A method for providing simultaneous ringing on a plurality of telephone lines using a centralized subscription database, said method comprising:

(a) populating the centralized subscription database with a plurality of telephone numbers associated with the plurality of telephone lines, wherein one of the plurality of telephone numbers is a primary telephone number;

(b) forwarding a first call to the primary telephone number from a first switch to a service node;

(c) placing a second call to the primary telephone number from the service node, wherein the second call comprises a counter in a first field;

(d) inserting a calling party number selected from the centralized subscription database in response to the second call;

(e) completing the second call from the service node to the selected calling party number;

(f) incrementing the counter;

(g) connecting the first call to the second call if said second call is answered; and

(h) repeating steps (c) through (g) for each telephone number in the centralized database.

2. The method of claim 1, further comprising the step of checking the status of each of the plurality of telephone lines.

3. The method of claim 1, wherein the first field is a redirecting party number field.

4. The method of claim 1, wherein the centralized subscription database is populated on a service control point.

5. The method of claim 4, further comprising the step of provisioning a trigger on a second switch wherein said trigger is provisioned for a line serving the service node;

and wherein step (d) further comprises sending a query from the second switch to the service control point and selecting the calling party number from the centralized subscription database according to the primary telephone number and the counter.

6. The method of claim 1, further comprising the steps of provisioning a trigger on the first switch wherein said trigger is provisioned for a line serving the primary telephone number, and wherein step (b) further comprises the steps of receiving the first call at the first switch, and sending a query message from the first switch to a service control point in response to the first call, sending a response message from the service control point to the first switch wherein said response comprises a Forward_Call message and a telephone number for the service node.

7. A method for providing simultaneous ringing on a primary telephone line and a plurality of secondary telephone lines, said method comprising:

(a) populating a database on a service control point with plurality of telephone numbers comprising a primary telephone number and a plurality of secondary telephone numbers;

(b) provisioning on a first switch a trigger for the primary telephone line;

(c) receiving on the first switch a first call to the primary telephone line;

(d) sending a first query from the first switch to the service control point in response to the first call;

(e) checking the status of the primary telephone line and the plurality of secondary telephone lines;

(f) sending a first response message from the service control point to the first switch;

(g) connecting the first call to a service node in response to the first response message;

(h) initiating a second call to the primary telephone line from the service node, wherein said second call has an identification code in a redirecting party field;

(i) receiving on the first switch the second call to the primary telephone line;

(j) sending a second query from the first switch to the service control point in response to the second call;

(k) sending a second response message from the service control point to the first switch wherein said second response provides a first telephone number selected from the plurality of telephone numbers in a called party field;

(l) ringing a first telephone line associated with the first telephone number;

(m) repeating steps (h) through (l) for each telephone number in the plurality of telephone numbers;

(n) connecting the caller if one of the calls is answered; and

(o) disconnecting the service node from each call made in the preceding steps.

8. The method of claim 7, wherein the plurality of subscriber telephone numbers comprises the wireline telephone number and a wireless line telephone number.

9. The method of claim 8, further comprising the steps of setting a first timer before sending the first call setup message and delaying step (i) until the first timer expires.

10. The method of claim 7, further comprising the steps of setting a first timer before sending the first call setup message and delaying step (k) until the first time expires.

11. The method of claim 7, wherein the identification code corresponds to a counter indicating an iteration of step (f).

12. A method for providing simultaneous ringing on a plurality of subscriber telephone lines, said method comprising:

(a) populating a database on a first server with a subscriber'"'"'s wireline number and a plurality of subscriber telephone numbers;

(b) forwarding to a second server a caller'"'"'s telephone call when the telephone call is placed to the subscriber'"'"'s wireline number;

(c) sending a call setup message from the second server to a switch, wherein said call setup message has the wireline number in a called party field and an identification code in a redirecting party field;

(d) querying the database for the wireline number and a telephone number selected from the plurality of subscriber telephone numbers based on the identification code;

(e) inserting the selected telephone number into the called party field;

(f) ringing a customer premises device associated with the selected telephone number;

(g) updating the identification code;

(h) repeating steps (c) through (f) for each telephone number in the plurality of subscriber telephone numbers;

(i) connecting the caller if one of the plurality of subscriber telephone lines is answered; and

(j) disconnecting the second server from each call made in the preceding steps.

13. The method of claim 12, wherein the plurality of subscriber telephone numbers comprises at least one wireless line number.

14. The method of claim 12, further comprising the steps of setting a first timer before sending the call setup message and delaying step (g) until the first timer expires.

15. The method of claim 12, further comprising the steps of setting a first timer before sending the call setup message and delaying step (j) until the first timer expires if none of the plurality of subscriber telephone lines are answered.

16. The method of claim 12, wherein the identification code corresponds to a counter indicating an iteration of step (g).

17. A system providing simultaneous ringing on a plurality of subscriber telephone lines, said system comprising:

(a) a service control point comprising a database including a subscriber'"'"'s wireline number and a plurality of subscriber telephone numbers;

(b) a first switch in communication with the service control point, wherein the first switch comprises a first trigger on the subscriber'"'"'s wireline number;

(c) a second switch in communication with the service control point, the first switch and a compact service node, wherein when a call encounters the first trigger, the call is forwarded to the compact service node, and the compact service node sends a first call setup message to the second switch, wherein the first call setup message has the subscriber'"'"'s wireline number in a called party field and a first identification code in a redirecting party field, and wherein the first call setup message encounters a second trigger on the second switch, wherein the second switch sends a query to the service control point, wherein in response to the query the service control point queries the database for the subscriber'"'"'s wireline number and selects a telephone number from the plurality of subscriber telephone numbers based on the first identification code, wherein the service control point inserts the selected telephone number into the called party field of a response message and sends the response message to the second switch, wherein the second switch rings a customer premises device associated with the selected telephone number, and wherein the compact service node updates the identification code and repeats sends a second call setup message to the second switch, wherein the second call setup message has the subscriber'"'"'s wireline number in the called party field and a second identification code in the redirecting party field.

18. The system of claim 17, wherein the plurality of subscriber telephone numbers comprises at least one wireless line number.

19. The system of claim 17, wherein the identification code corresponds to a counter indicating when a call setup message has been sent from the compact service node to the second switch.

20. The system of claim 17, wherein the first switch and the second switch comprise the same switch.

21. The system of claim 17, further comprising a plurality of signaling links connecting the first and second switches and the service control point to a signaling network.

22. The system of claim 21, wherein the signaling network comprises a common channel signaling system number 7 network.

23. The system of claim 17, further comprising a mobile switching center in communication with the service control point and the first and second switches, said mobile switching center logically connected to one of the plurality of subscriber telephone numbers.