{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9668090","patent":{"patent_number":"US-9668090","title":"System and method for providing emergency service in an IP-based wireless network","assignee":null,"inventors":[],"filing_date":"2015-06-01T00:00:00.000Z","publication_date":"2017-05-30T00:00:00.000Z","cpc_codes":["H04W","H04L","H04M","H04M","H04W","H04W","H04W","H04W","H04M","H04M","H04W","H04W"],"num_claims":20,"abstract":"An E-CSCF receives a Session Initiation Protocol (“SIP”) invitation message initiating an emergency communication session from a calling device. The E-CSCF generates an information request message based on the received SIP message and sends the information request message to a location server. The location server determines a geographical location of the calling device and uses the geographical location to determine a destination emergency response center, such as a Public Safety Access Point (PSAP). The location server provides location information for the destination PSAP to the E-CSCF. The E-CSCF generates a modified SIP invitation message using the presence information and sends the modified SIP invitation message to an emergency services network where it is routed to the emergency response center."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"System and method for providing emergency service in an IP-based wireless network","description":"An E-CSCF receives a Session Initiation Protocol (“SIP”) invitation message initiating an emergency communication session from a calling device. The E-CSCF generates an information request message bas","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9668090","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-9668090","citation_suggestion":"Patentable. \"System and method for providing emergency service in an IP-based wireless network\" (US-9668090). https://patentable.app/patents/US-9668090","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9668090","json":"https://patentable.app/api/llm-context/US-9668090","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T14:41:15.560Z"}