{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8483370","patent":{"patent_number":"US-8483370","title":"Correlating call detail records with telephony switch information","assignee":null,"inventors":[],"filing_date":"2008-07-29T00:00:00.000Z","publication_date":"2013-07-09T00:00:00.000Z","cpc_codes":["H04M","H04M","H04M","H04M","H04M","H04Q","H04Q","H04Q"],"num_claims":20,"abstract":"Embodiments of the present invention include a method for processing a non-normalized local exchange routing guide (LERG) table to produce a normalized LERG table. The LERG tables have an NPA field, an NXX field, a Block_Id field, and a Switch_Id field. The method includes joining all distinct combinations of NPA and NXX in the non-normalized LERG table to all valid Block_Ids to produce a NormLERG table. The method further includes populating a Switch_Id field, in each NormLERG record having a distinct NPA-NXX value. The populating of the Switch_Id field is based on a number of corresponding non-normalized LERG records and on the Switch_Id field in one of the corresponding non-normalized LERG records and on a number of distinct Switch_ID values in the corresponding non-normalized LERG records. Each of the corresponding non-normalized LERG records has a same one of the NPA-NXX values."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Correlating call detail records with telephony switch information","description":"Embodiments of the present invention include a method for processing a non-normalized local exchange routing guide (LERG) table to produce a normalized LERG table. The LERG tables have an NPA field, a","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8483370","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-8483370","citation_suggestion":"Patentable. \"Correlating call detail records with telephony switch information\" (US-8483370). https://patentable.app/patents/US-8483370","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8483370","json":"https://patentable.app/api/llm-context/US-8483370","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T20:31:07.040Z"}