{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11496319","patent":{"patent_number":"US-11496319","title":"Method of identity authentication for voice over internet protocol call and related device","assignee":null,"inventors":[],"filing_date":"2019-09-18T00:00:00.000Z","publication_date":"2022-11-08T00:00:00.000Z","cpc_codes":["H04L","H04L","H04L","H04L","H04L","H04M","H04L","H04L"],"num_claims":21,"abstract":"A method of identity authentication for VoIP call, used for a first communication device supporting SIP and blockchain transmission technology, the method comprising: requesting an identity signature from a second communication device during a SIP call establishment, receiving the identity signature transmitted by the second communication device, wherein the identity signature is generated by the second communication device according to a private key, querying a public key corresponding to the identity signature from a blockchain server, utilizing the public key to verify the identity signature when obtaining the public key from the blockchain server, so as to generate a verification result, and determining to continue or terminate the SIP call establishment based on the verification result."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method of identity authentication for voice over internet protocol call and related device","description":"A method of identity authentication for VoIP call, used for a first communication device supporting SIP and blockchain transmission technology, the method comprising: requesting an identity signature ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11496319","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-11496319","citation_suggestion":"Patentable. \"Method of identity authentication for voice over internet protocol call and related device\" (US-11496319). https://patentable.app/patents/US-11496319","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11496319","json":"https://patentable.app/api/llm-context/US-11496319","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T16:25:19.789Z"}