WiFi hazardous area VoIP paging telephone and system
First Claim
Patent Images
1. A voice over internet protocol (VoIP) unit comprising:
- a VoIP control module for VoIP operations among VoIP units that is configured to selectively establish peer-to-peer communication between the VoIP unit and another one of the VoIP units, and multicast paging among a plurality of the units;
a WiFi antenna configured for operation in a hazardous area in compliance with the one or more hazardous area standards;
a WiFi interface module connected to the VoIP control module and the WiFi antenna and configured to exchange bi-directional Ethernet data between the antenna and the VoIP control module;
an enclosure configured to comply with one or more hazardous area standards and enclose the VoIP control module and the WiFi interface module, the antenna being mounted on the exterior of the enclosure through an opening therein and pressure fitted within the opening to retain the compliance of the enclosure with the one or more hazardous area standards when the antenna is deployed in the opening;
an amplifier; and
a loudspeaker connected to the amplifier to output a signal from the VoIP control module that can be detected by users above industrial ambient noise levels associated with the hazardous area in which the VoIP unit is deployed.
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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).
9 Citations
17 Claims
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1. A voice over internet protocol (VoIP) unit comprising:
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a VoIP control module for VoIP operations among VoIP units that is configured to selectively establish peer-to-peer communication between the VoIP unit and another one of the VoIP units, and multicast paging among a plurality of the units; a WiFi antenna configured for operation in a hazardous area in compliance with the one or more hazardous area standards; a WiFi interface module connected to the VoIP control module and the WiFi antenna and configured to exchange bi-directional Ethernet data between the antenna and the VoIP control module; an enclosure configured to comply with one or more hazardous area standards and enclose the VoIP control module and the WiFi interface module, the antenna being mounted on the exterior of the enclosure through an opening therein and pressure fitted within the opening to retain the compliance of the enclosure with the one or more hazardous area standards when the antenna is deployed in the opening; an amplifier; and a loudspeaker connected to the amplifier to output a signal from the VoIP control module that can be detected by users above industrial ambient noise levels associated with the hazardous area in which the VoIP unit is deployed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A voice over internet protocol (VoIP) unit comprising:
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a VoIP control module for VoIP operations among VoIP units that is configured to selectively establish peer-to-peer communication between the VoIP unit and another one of the VoIP units, and multicast paging among a plurality of the units; a WiFi antenna configured for operation in a hazardous area in compliance with the one or more hazardous area standards; a WiFi interface module connected to the VoIP control module and the WiFi antenna and configured to exchange bi-directional Ethernet data between the antenna and the VoIP control module; and an enclosure configured to comply with one or more hazardous area standards and enclose the VoIP control module and the WiFi interface module; wherein the antenna is mounted on the exterior of the enclosure through an opening therein and is configured to retain the compliance of the enclosure with the one or more hazardous area standards when the antenna is deployed in the opening. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
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Specification