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Virtual Modem PRO 2.0 was designed to create software virtual IP-modems and to map them to virtual serial ports in your OS. Virtual Modem Pro emulates standard hardware modems. The main difference is that instead of using conventional telephone line, it uses Ethernet network, including Internet, VLAN, VPN, etc. Standard modems are connected to the computer via serial ports (COM1/COM2 or COM3/COM4). Virtual modem uses virtual serial ports that are complete copies of real serial ports. The main advantages of Virtual Modem Pro is speed and reliability of the transmitted data (since it uses fast Ethernet network and reliable TCP/IP protocol) as well as a considerable number (up to 255) of modems that can be created in any system. Every automation system that collects data from the remote hosts using modem and telephone line can greatly benefit from implementing Virtual Modem PRO. Among these are manufacturing/warehouse DAQ systems, fiscal/data transfers in a banking system, retail management, etc. Virtual Modem PRO uses virtual serial ports technology which fully emulates real serial ports and duplicates all their functionality. To create such connection the first virtual modem (local host) should be configured as a TCP/IP server that listens to incoming connections, while the other one (remote host) should be configured as a client to initiate the call. Every instance of the virtual modem could be configured to be server or client at any time depending whether you want to generate outgoing call or accept it (same as standard modems). In addition, you may specify the TCP port which will be used to establish the link and IP-address or hostname of the server to connect to. In order to establish such client-server connection you should install and set up Virtual Modem PRO on both ends. Single license allows you to install and use Virtual Modem PRO on two computers in a network.