{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9668175","patent":{"patent_number":"US-9668175","title":"Handset transitions in a dual-mode environment","assignee":null,"inventors":[],"filing_date":"2015-02-11T00:00:00.000Z","publication_date":"2017-05-30T00:00:00.000Z","cpc_codes":["H04L","H04L","H04L","H04M","H04W","H04W","H04W","H04W","H04W","H04W","H04M","H04M","H04M","H04W","H04W"],"num_claims":20,"abstract":"Embodiments of the invention provide novel solutions, including systems, methods and/or software, for handling calls in a dual-mode VoIP/cellular environment. Merely by way of example, some systems can be configured to determine whether to use a VoIP system or a cellular system to handle a particular call, and/or to transition a call from one network to the other network. Other systems can be configured to substitute a public number (which might be, for example, a VoIP number) for a private number (which might be, for example, a cellular number) when routing a call originating from a dual-mode phone on a cellular network. Further systems can be configured to allow a VoIP system to serve as an anchor for calls originated and/or delivered on a cellular system, for instance to facilitate a transition between cellular and VoIP service during a call."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Handset transitions in a dual-mode environment","description":"Embodiments of the invention provide novel solutions, including systems, methods and/or software, for handling calls in a dual-mode VoIP/cellular environment. Merely by way of example, some systems ca","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9668175","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-9668175","citation_suggestion":"Patentable. \"Handset transitions in a dual-mode environment\" (US-9668175). https://patentable.app/patents/US-9668175","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9668175","json":"https://patentable.app/api/llm-context/US-9668175","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T14:00:19.332Z"}