From your fax application view point it s a fax modem pool. From IP network view point it s a H.323 endpoint with T.38 fax support. From your view point it s a gateway between a fax application and IP network.

简单的opnet实例，建立网络拓扑结构，选择仿真的结果，运行仿真，并查看仿真结果。-OPNET simple example, the establishment of network topology, select the simulation results, run simulation, and view the simulation results.

自己编写的可以查看传真文件的例子程序，Delphi代码-I have written the example program can view the fax documents