{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9648645","patent":{"patent_number":"US-9648645","title":"WiFi hazardous area VoIP paging telephone and system","assignee":null,"inventors":[],"filing_date":"2016-05-20T00:00:00.000Z","publication_date":"2017-05-09T00:00:00.000Z","cpc_codes":["H04W","H04B","H04B","H04M","H04W","H04W","H04W","H04L","H04W","H04W"],"num_claims":17,"abstract":"VoIP-based telephone is provided with integral paging amplifier and a WiFi antenna, and is designed for hazardous areas such as UL Class I, Division 1, Division 2 and IEC Ex including the WiFi antenna. A system of VoIP-based telephone units supports multicast to provide prioritized and loudspeaker-zoned paging. The integral 30-watt class D amplifier in the telephone units provides sufficient volume for paging and ringing to be reliably detected by personnel in hazardous locations. Upon lifting the handset, the telephone unit can automatically revert to standard VoIP telephone operation. The telephones can be powered via DC, AC or with Power over Ethernet (POE)."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"WiFi hazardous area VoIP paging telephone and system","description":"VoIP-based telephone is provided with integral paging amplifier and a WiFi antenna, and is designed for hazardous areas such as UL Class I, Division 1, Division 2 and IEC Ex including the WiFi antenna","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9648645","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-9648645","citation_suggestion":"Patentable. \"WiFi hazardous area VoIP paging telephone and system\" (US-9648645). https://patentable.app/patents/US-9648645","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9648645","json":"https://patentable.app/api/llm-context/US-9648645","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T07:22:32.308Z"}