In datang updated campus VoIP solutions, considering the campus network environment is relatively simple, so mainly in terms of access by voice gateway distribution park of ordinary telephone access to the campus network, connected to the PSTN communication is through the relay gateway PSTN network and Internet network, the scheme within the campus network deployed softswitch platform SS3000 datang updated release - T, through SS3000 - T control, management and billing functions, realizes the campus VoIP network "can maintain, can operation", concrete measures for implementation of the scheme for the school room deployment of VoIP/SS3000 softswitch platform - T, in each of the students' dormitory, office buildings, such as wiring room to deploy home gateway MG3000 - A, and make it downward at one end to the dormitory, the place such as the office of the ordinary telephone, campus network uplink end through the Ethernet interface,
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