{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9807126","patent":{"patent_number":"US-9807126","title":"Operating a network node","assignee":null,"inventors":[],"filing_date":"2017-02-22T00:00:00.000Z","publication_date":"2017-10-31T00:00:00.000Z","cpc_codes":["H04L","H04L","H04L"],"num_claims":24,"abstract":"Measures, including methods, apparatus and computer programs, for use in operating a network node. At the network node a database of session description protocol (SDP) precondition preference data for a plurality of network elements is maintained. A session initiation protocol (SIP) message directed towards a downstream network element is received. The received message includes SDP data. A lookup in the database in relation to the received SIP message is performed to retrieve SDP precondition preference data for the downstream network element. The received SIP message is processed according to the retrieved SDP precondition preference data. The processed SIP message is transmitted to the downstream network element."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Operating a network node","description":"Measures, including methods, apparatus and computer programs, for use in operating a network node. At the network node a database of session description protocol (SDP) precondition preference data for","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9807126","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-9807126","citation_suggestion":"Patentable. \"Operating a network node\" (US-9807126). https://patentable.app/patents/US-9807126","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9807126","json":"https://patentable.app/api/llm-context/US-9807126","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T15:38:45.945Z"}