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Based on the VoIP implementation and application of highway communication network to download

Time:11-15

At present, the highway communication network is becoming more than a business, professional multimedia transmission system transmission distance long, but most of the expressway emergency telephone, instruction telephone, program-controlled telephone switching system, commonly used business phone call charges is higher, and a single business, this paper through the analysis of VoIP technology and the existing expressway data transmission network, in detail elaborated the highway IP communication network is a blend of VoIP network structure and the access requirements,
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