{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-10469543","patent":{"patent_number":"US-10469543","title":"Recovery from a potential proxy call session control function (P-CSCF) failure during call origination","assignee":null,"inventors":[],"filing_date":"2018-04-27T00:00:00.000Z","publication_date":"2019-11-05T00:00:00.000Z","cpc_codes":["H04L","H04L","H04L","H04L","H04L","H04W","H04L","H04W"],"num_claims":20,"abstract":"A user device registers with a proxy-call session control function device (P-CSCF) associated with an Internet protocol (IP) multimedia subsystem (IMS). The user device forwards a request to the P-CSCF requesting a session via the IMS for an IMS call. If a response to the request is not received from the P-CSCF during a time period after forwarding the request, the user device attempts to newly register with the P-CSCF. If the new registration is successful, the user device re-forwards the request to the P-CSCF. Otherwise, if the new registration with the P-CSCF is unsuccessful, the user device registers with a different P-CSCF and forwards the request to the second P-CSCF."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Recovery from a potential proxy call session control function (P-CSCF) failure during call origination","description":"A user device registers with a proxy-call session control function device (P-CSCF) associated with an Internet protocol (IP) multimedia subsystem (IMS). The user device forwards a request to the P-CSC","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-10469543","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-10469543","citation_suggestion":"Patentable. \"Recovery from a potential proxy call session control function (P-CSCF) failure during call origination\" (US-10469543). https://patentable.app/patents/US-10469543","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-10469543","json":"https://patentable.app/api/llm-context/US-10469543","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T13:23:44.986Z"}