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A waterproof and dustproof telephone broadcasting device
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A tunnel telephone device that avoids signal interference
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A user circuit that supports full call function
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A new type of digital program-controlled switch
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A digital program-controlled user switch
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A fully decentralized control device for digital programmable scheduling machine
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A programmable scheduling machine with voice recording function
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A uniform heat dissipation device for power dispatching machinery
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Explosion proof Telephone - Exterior Design
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Embedded control software for motherboard
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Signaling control software
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Ethernet Device Management System
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Digital scheduling management software
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Ethernet Fiber Optic Switch Management Software for Ring Network
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Multimedia Fusion Communication Exchange System Software V1.0
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IP address management tool software