# US 8,150,005 B1 · Method, architectures and technique for authentication of telephone calls > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,150,005 B1 - Document ID: US8150005B1 - Status: Granted - Kind: B1 - Application number: 11/805,574 - Filed: 2007-05-23 - Granted: 2012-04-03 - Earliest claimed: 2004-04-23 - Assignees: AT&T Intellectual Property II, L.P. - Inventors: Robert Sayko; Martin Sliwicki - Web page: https://patentgrep.com/patent/US8150005B1 ## CPC - H04L 63/0823: {using certificates (cryptographic mechanisms or cryptographic arrangements for entity authentication involving certificates H04L9/3263)} - H04M 3/436: Arrangements for screening incoming calls {, i.e. evaluating the characteristics of a call before deciding whether to answer it (based on the calling party profile H04M3/42059; based on location H04M3/42348; based on presence H04M3/42365; diversion H04M3/54)} - H04M 7/006: {Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP) , including next generation networks with a packet-switched transport layer (H04L65/00 takes precedence; aspects not specific to the type of network H04M3/00; special services in those networks H04M3/42)} - H04Q 3/0025: {Provisions for signalling} - H04M 3/42034: {Calling party identification service} - H04M 2203/2005: Temporarily overriding a service configuration - H04Q 2213/13095: PIN / Access code, authentication - H04Q 2213/13176: Common channel signaling, CCS7 - H04Q 2213/13339: Ciphering, encryption, security - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - H04M: TELEPHONIC COMMUNICATION (circuits for controlling other apparatus via a telephone cable and not involving telephone switching apparatus G08) - H04Q: SELECTING (switches, relays, selectors H01H; wireless communication networks H04W) ## Abstract A method and system authenticates an authenticatee and provides an authentication to a recipient. The authenticatee may be either the called party or the calling party. A network platform or customer premise equipment may be utilized to provide information for authentication. Customer premise equipment provides the authentication to the recipient. ## Claims ### Claim 1 A system for authenticating a first party of a telephone call between the first party and a second party, the system comprising: means for receiving signaling network data from the first party; means for authenticating, during the telephone call, that the first party is registered with an authentication service based on the signaling network data; means for transmitting a certificate representing an authentication of the first party to the second party, wherein the certificate provides an authentication level of the authentication of the first party and the certificate includes a reserve code number to be displayed to the second party; and means for providing to the second party a verbal announcement of a company and address of the first party in response to the second party entering the reserve code number during the telephone call. ### Claim 2 (depends on 1) The system of claim 1, wherein the system is operable as a network platform. ### Claim 3 (depends on 1) The system of claim 1, wherein the system is operable as customer premises equipment. ### Claim 4 (depends on 1) The system of claim 1, further comprising a platform interface for receiving additional authentication information from the first party. ### Claim 5 (depends on 1) The system of claim 1, wherein the means for receiving signaling network data further comprises means for receiving authentication information of an identity of the second party. ### Claim 6 (depends on 1) The system of claim 1, further comprising means for receiving the certificate at the first party. ### Claim 7 (depends on 1) The system of claim 1, further comprising: means for receiving the certificate at the second party. ### Claim 8 (depends on 1) The system of claim 1, further comprising: means for creating the certificate. ### Claim 9 A method for authenticating a first party of a call between the first party and a second party, the method comprising: receiving signaling network data from the first party; authenticating, during the telephone call, that the first party is registered to an authentication service based on the signaling network data; transmitting a certificate representing an authentication of the first party to the second party, wherein the certificate provides an authentication level of the authentication of the first party and the certificate includes a reserve code number to be displayed to the second party; and providing to the second party a verbal announcement of a company and address of the first party in response to the second party entering the reserve code number during the telephone call. ### Claim 10 (depends on 9) The method of claim 9, wherein the second party is a calling party and the first party is a called party. ### Claim 11 (depends on 9) The method of claim 9, wherein the first party is a calling party and the second party is a called party. ### Claim 12 (depends on 9) The method of claim 9, wherein the certificate provides a visual indication of the authentication of the first party. ### Claim 13 (depends on 9) The method of claim 9, wherein the certificate is digitally signed by the authentication service. ### Claim 14 (depends on 13) The method of claim 13, further comprising: generating the certificate. ### Claim 15 (depends on 9) The method of claim 9, wherein authenticating that the first party is registered to an authentication service based on the signaling network data further comprises: comparing the signaling network data with stored registration information associated with the first party. ### Claim 16 (depends on 9) The method of claim 9, wherein the receiving, the authenticating, and the transmitting occur after the call is established between the first party and the second party.