IP Library Granted Patent US 10,708,417
Granted Patent B1
US 10,708,417 · App. 16/104,998 · Granted Jul 7, 2020

Reduction in network congestion

Inventor: Douglas L. Davis (Murphy, TX)
Assignee: West Corporation
H04M3/42068H04L65/1046H04L65/1069H04L65/80H04M1/663H04M3/365H04M3/367H04M2203/6027
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Quick Facts
Patent No.
US 10,708,417
App. No.
16/104,998
Granted
Jul 7, 2020
Kind
B1
Abstract

A system, method and non-transitory computer readable storage medium comprising instructions that when read by a processor perform receiving a telephony connection request, determining a purported sender telephony number from the telephony connection request, determining additional request information from the telephony connection request, accessing an information source using the purported sender telephony number to determine source information regarding the sender, comparing the source information with the additional request information, based on the comparison, and determining whether the purported sender telephony number is incorrect.

Claims (43)

1. A method, comprising:

using a purported sender telephony number to obtain sender confirmation information regarding a purported sender of a received telephony connection request;

comparing general request information from the telephony connection request with the sender confirmation information;

based on the comparison, determining whether the sender of the telephony connection request is different than the purported sender of the telephony connection request;

in the case the sender of the telephony connection request is determined to be the same as the purported sender of the telephony connection request, allowing the telephony connection request; and

in the case the sender of the telephony connection request is determined to be different than the purported sender of the telephony connection request, denying the telephony connection request.

2. The method of claim 1 , wherein the general request information comprises routing information in the telephony connection request.

3. The method of claim 2 , wherein the routing information includes an operating carrier number.

4. The method of claim 1 , wherein the sender confirmation information comprises routing information known to be associated with the purported sender telephony number.

5. The method of claim 4 , wherein:

comparing the general request information with the sender confirmation information comprises comparing the routing information in the telephony connection request with the routing information known to be associated with the purported sender telephony number; and

based on the comparison, determining whether the sender of the telephony connection request is different than the purported sender of the telephony connection request.

6. The method of claim 1 , further comprising receiving a telephony connection request.

7. The method of claim 1 , wherein determining whether the sender of the telephony connection request is different than the purported sender of the telephony connection request includes determining that the identity of the purported sender has been spoofed.

8. The method of claim 1 , further comprising sending a reply in response to the telephony connection request, when forwarding the telephony connection request to an intended recipient would result in a system response.

9. The method of claim 8 , wherein the reply differs from the system response.

10. A non-transitory computer readable storage medium comprising instructions that when read by a processor perform:

using a purported sender telephony number to obtain sender confirmation information regarding a purported sender of a received telephony connection request;

comparing general request information from the telephony connection request with the sender confirmation information;

based on the comparison, determining whether the sender of the telephony connection request is different than the purported sender of the telephony connection request;

in the case the sender of the telephony connection request is determined to be the same as the purported sender of the telephony connection request, allowing the telephony connection request; and

in the case the sender of the telephony connection request is determined to be different than the purported sender of the telephony connection request, denying the telephony connection request.

11. The non-transitory computer readable storage medium of claim 10 , wherein the general request information comprises routing information in the telephony connection request.

12. The non-transitory computer readable storage medium of claim 11 , wherein the routing information includes an operating carrier number.

13. The non-transitory computer readable storage medium of claim 10 , wherein the sender confirmation information comprises routing information known to be associated with the purported sender telephony number.

14. The non-transitory computer readable storage medium of claim 13 , wherein:

comparing the general request information with the sender confirmation information comprises comparing the routing information in the telephony connection request with the routing information known to be associated with the purported sender telephony number; and

based on the comparison, determining whether the sender of the telephony connection request is different than the purported sender of the telephony connection request.

15. The non-transitory computer readable storage medium of claim 10 , comprising further instructions that when read by a processor perform receiving a telephony connection request.

16. The non-transitory computer readable storage medium of claim 10 , wherein determining whether the sender of the telephony connection request is different than the purported sender of the telephony connection request includes determining that the identity of the purported sender has been spoofed.

17. The non-transitory computer readable storage medium of claim 10 , comprising further instructions that when read by a processor perform sending a reply in response to the telephony connection request in the case forwarding the telephony connection request to an intended recipient would result in a system response.

18. The non-transitory computer readable storage medium of claim 10 , wherein the reply differs from the system response.

19. A system, comprising:

a processor; and

memory;

wherein the processor and the memory are communicably coupled to one another;

wherein the processor:

uses a purported sender telephony number to obtain sender confirmation information regarding a purported sender of a received telephony connection request;

compares general request information from the telephony connection request with the sender confirmation information;

based on the comparison, determines whether the sender of the telephony connection request is different than the purported sender of the telephony connection request;

in the case the sender of the telephony connection request is determined to be the same as the purported sender of the telephony connection request, allow the telephony connection request; and

in the case the sender of the telephony connection request is determined to be different than the purported sender of the telephony connection request, denies the telephony connection request.

20. The system of claim 19 , wherein the general request information comprises route information in the telephony connection request.

Assignments (5)
OMNIBUS ASSIGNMENT OF SECURITY INTEREST IN INTELLECTUAL PROPERTY Recorded Nov 25, 2024
From: UBS AG, STAMFORD BRANCH (AS SUCCESSOR TO CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH IN ITS CAPACITY AS COLLATERAL AGENT)
To: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS THE SUCCESSOR COLLATERAL AGENT
Reel/Frame 069438/0775 →
CHANGE OF NAME Recorded Apr 3, 2023
From: INTRADO CORPORATION
To: WEST TECHNOLOGY GROUP, LLC
Reel/Frame 063239/0876 →
CHANGE OF NAME Recorded Apr 3, 2023
From: WEST CORPORATION
To: INTRADO CORPORATION
Reel/Frame 063239/0900 →
NOTICE OF GRANT OF SECURITY INTEREST (SECOND LIEN) IN PATENTS Recorded Jan 31, 2023
From: CX360, INC.; WEST TECHNOLOGY GROUP, LLC (FKA INTRADO CORPORATION, FKA WEST CORPORATION); INTRADO INTERACTIVE SERVICES CORPORATION (FKA WEST INTERACTIVE SERVICES CORPORATION, FKA COBALT ACQUISITION COMPANY)
To: U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 062571/0018 →
NOTICE OF GRANT OF SECURITY INTEREST IN PATENTS - FIRST LIEN Recorded May 22, 2019
From: WEST CORPORATION
To: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS COLLATERAL AGENT
Reel/Frame 049255/0843 →