{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9742814","patent":{"patent_number":"US-9742814","title":"Selective call blocking and call re-direction","assignee":null,"inventors":[],"filing_date":"2014-03-31T00:00:00.000Z","publication_date":"2017-08-22T00:00:00.000Z","cpc_codes":["H04L","H04L","H04L","H04L","H04L","H04M"],"num_claims":15,"abstract":"A selective call blocking function (SCBF) device, included in an internet protocol (IP) multimedia subsystem (IMS), processes a request to establish an IP call on an LTE network, such as a voice over long term evolution (VoLTE) call. The SCBF device identifies a user equipment (UE) associated with the IP call and an associated eNode B (eNB). For example, the SCBF may access a subscriber location memory to determine a location of the UE and an eNB associated with the location. The SCBF determines whether the eNB supports the IP call, and permits the IP call to be established via the IMS when the eNB supports the IP call. When the eNB does not support the IP call, the SCBF blocks the IP call and initiates a non-IP call, such as a 1× call, to the UE to prevent communications interruptions."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Selective call blocking and call re-direction","description":"A selective call blocking function (SCBF) device, included in an internet protocol (IP) multimedia subsystem (IMS), processes a request to establish an IP call on an LTE network, such as a voice over ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9742814","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-9742814","citation_suggestion":"Patentable. \"Selective call blocking and call re-direction\" (US-9742814). https://patentable.app/patents/US-9742814","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9742814","json":"https://patentable.app/api/llm-context/US-9742814","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T07:47:46.317Z"}