{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9775125","patent":{"patent_number":"US-9775125","title":"Apparatus, systems and methods for enhancing IP multimedia subsystem service continuity","assignee":null,"inventors":[],"filing_date":"2016-06-10T00:00:00.000Z","publication_date":"2017-09-26T00:00:00.000Z","cpc_codes":["H04W","H04L","H04L","H04W","H04W","H04W"],"num_claims":20,"abstract":"Described herein are apparatus, systems and methods for enhancing Internet protocol (“IP”) multimedia subsystem service continuity. The methods including, at a user equipment (“UE”) connected to a first network using a first Radio Access Technology (“RAT”) and authorization information, connecting to a second network using a second RAT, transmitting a first registration attempt to an IP multimedia subsystem (“IMS”) associated with the second network, determining that the registration attempt with the IMS associated with the second network did not complete, clearing the authorization information, reconnecting to the first network and transmitting a second registration attempt to the IMS associated with the first network without the authorization information."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Apparatus, systems and methods for enhancing IP multimedia subsystem service continuity","description":"Described herein are apparatus, systems and methods for enhancing Internet protocol (“IP”) multimedia subsystem service continuity. The methods including, at a user equipment (“UE”) connected to a fir","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9775125","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-9775125","citation_suggestion":"Patentable. \"Apparatus, systems and methods for enhancing IP multimedia subsystem service continuity\" (US-9775125). https://patentable.app/patents/US-9775125","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9775125","json":"https://patentable.app/api/llm-context/US-9775125","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T15:40:26.969Z"}