US 12,238,086 B2
Systems and methods for preventing toll fraud in a SIP environment
Jinson Abraham, Stittsville (CA); and Hrishikesh Ulhas Mahajan, Pune (IN)
Assigned to Avaya Management L.P., Durham, NC (US)
Filed by Avaya Management L.P., Durham, NC (US)
Filed on Jun. 17, 2022, as Appl. No. 17/843,759.
Prior Publication US 2023/0412584 A1, Dec. 21, 2023
Int. Cl. H04L 9/40 (2022.01)
CPC H04L 63/0823 (2013.01) [H04L 63/083 (2013.01); H04L 63/0876 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method, comprising:
storing, by a database, user information including tying information and a password,
wherein the tying information includes a communication address and a device identifier that ties the communication address to a communication device and the communication address includes at least one of an extension number or a Session Initiation Protocol (SIP) handle;
receiving, by a processor, the communication address and the password encrypted with a digital certificate associated with the communication device,
wherein the digital certificate includes the tying information;
decrypting, by the processor, the encrypted communication address and password,
determining, by the processor, whether the digital certificate is trusted;
when the digital certificate is deemed trusted, comparing, by the processor, the tying information of the digital certificate and the stored tying information;
determining, by the processor, that the tying information of the digital certificate matches the stored tying information;
comparing, by the processor, the password with the stored password;
determining, by the processor, the password matches the stored password; and
authenticating, by the processor, the user information for the communication device within a SIP environment.