Using rapid communication MX8-4 s/4 gateway, the telephone connected to the gateway FXS ports, outside to connect to the FXO ports, and IP gateway upward so connected to the user group of the Internet, PBX and gateway, suitable for in traditional telephone equipment and local PSTN connect spent a part of the capital of enterprises, through the MX8-4 s/4 gateway, the user can also set arbitrary call bypass rules, will come from all the long-distance telephone PBX exhale through group net, local exhaled by outside go local telephone, do this, companies PBX without changing any Settings and add the perimeter board, only needs to be local PSTN relay access FXO ports, FXS port with the PBX series, uplink IP so connected to the enterprise group of the Internet, implementation is very simple, convenient,
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