{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8489064","patent":{"patent_number":"US-8489064","title":"Integrated services user part (ISUP)/session initiation protocol (SIP) gateway for unlicensed mobile access (UMA) emergency services call flow","assignee":null,"inventors":[],"filing_date":"2011-12-30T00:00:00.000Z","publication_date":"2013-07-16T00:00:00.000Z","cpc_codes":["H04W","G01S","H04L","H04L","H04L","H04L","H04L","H04L","H04L","H04L","H04M","H04M","H04M","H04W","H04W","H04W","H04M","H04M","H04M","H04W","H04W","H04W","H04W"],"num_claims":26,"abstract":"An ISUP/SIP gateway is implemented to encapsulate SS7 location requests from a switched telephone network into an Internet protocol SIP message including one or more location objects. The ISUP/SIP gateway is implemented between a mobile switching center (MSC) and a VoIP positioning center (VPC) to provide support of unlicensed mobile access (UMA) voice over Internet Protocol (VoIP) call routing, e.g., for E9-1-1, 4-1-1, 2-1-1, etc. The disclosed location objects that are encapsulated into a SIP message includes calling party number, called party number, CGI, International Mobile Subscriber Identity (IMSI), mobility indicator, and/or access point MAC address. At the SIP/ISUP gateway, SS7 integrated services user part (ISUP) location request messages are encapsulated within SIP. The SIP encapsulated location request message is then routed over the Internet to a destination VoIP positioning center (VPC)."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Integrated services user part (ISUP)/session initiation protocol (SIP) gateway for unlicensed mobile access (UMA) emergency services call flow","description":"An ISUP/SIP gateway is implemented to encapsulate SS7 location requests from a switched telephone network into an Internet protocol SIP message including one or more location objects. The ISUP/SIP gat","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8489064","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-8489064","citation_suggestion":"Patentable. \"Integrated services user part (ISUP)/session initiation protocol (SIP) gateway for unlicensed mobile access (UMA) emergency services call flow\" (US-8489064). https://patentable.app/patents/US-8489064","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8489064","json":"https://patentable.app/api/llm-context/US-8489064","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T14:10:19.872Z"}