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The VoIP explosion-proof telephones are designed to provide safe, reliable communication for both indoor and outdoor hazardous areas, featuring a sturdy non-sparking, impact and shock resistant composite explosion-proof housing , it's ruggedly constructed to withstand the demanding conditions found within extreme environments, resulting in high reliability of the product long MTBF. They are IP-based telephone with automatic magnetic shut-off door to handle the large temperature differences, high humidity, exposure to sea water and dust, corrosive atmosphere, explosive gases/particles, as well as mechanical wear and tear, making it excellent for use as an emergency telephone.

VoIP industrial speakerphones are IP-based Integrated PA & Intercom telephone, which are fully contained in a composite waterproof housing with loud speakerphone and alarm lamp,

Emergency talkback call station series telephones are intended for use in public areas where direct assistance or hands-free communication is required, they provide a two-way link to assistance through GSM or VoIP, full duplex telephone transmission. a call may be initiated from the telephone or from the monitoring station. they have a rain cover, can block a part of the rain attack, more suitable for outdoor use.