{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11523308","patent":{"patent_number":"US-11523308","title":"Methods, apparatuses, and systems for voice service handover","assignee":null,"inventors":[],"filing_date":"2020-09-30T00:00:00.000Z","publication_date":"2022-12-06T00:00:00.000Z","cpc_codes":["H04W","H04W","H04W","H04W","H04W"],"num_claims":19,"abstract":"A communication method and a communications apparatus, the method including receiving, by an access and mobility management function (AMF) entity, a first message from a first access network device, where the first message comprises information for indicating to hand over a voice service of a terminal from a packet switched (PS) domain to a circuit switched (CS) domain, the first message further comprises identification information of a target device, and the target device is a second access network device in a 3G network, and sending, by the AMF entity, through a mobility management entity (MME) a request message to a mobile switching center (MSC) entity, where the request message comprises information indicating a source of the first message."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Methods, apparatuses, and systems for voice service handover","description":"A communication method and a communications apparatus, the method including receiving, by an access and mobility management function (AMF) entity, a first message from a first access network device, w","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11523308","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-11523308","citation_suggestion":"Patentable. \"Methods, apparatuses, and systems for voice service handover\" (US-11523308). https://patentable.app/patents/US-11523308","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11523308","json":"https://patentable.app/api/llm-context/US-11523308","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T17:39:19.918Z"}