InternetModem

While some may argue that terminal emulators were used to control text commands, the truth is that they are still relevant today. In fact, modern applications that act as Telnet emulators come with advanced capabilities and can be used to get shell access to computers or accessing basic programs via command line.

InternetModem is a Telnet server or modem emulator tool that listens to the connections and helps facilitate the connection to the serial port. The tool can emulate a standard Hayes modem and supports AT commands for the serial ports being used.

The application does not require installation, but rather you can just download and decompress the archive in the desired location. The app comes with a CLI interface and before you can start using it, first you need to make some configurations. More precisely, the app enables you to edit the TCP port, COM port, BAUD rate, Handshake or the Start, Stop and Data bits from the INI file.

As far as the functionality goes, the tool allows you to make outgoing Telnet calls via the ATDT command and informs callers when the BBS is busy or engaged in another connection. The Telnet protocol is handled transparently and you can even establish a connection from a non-compliant terminal. Moreover, according to the developer, the AT command parser works with multiple commands and can ignore the unnecessary ones.

As you would expect from a modern emulator, the tool is IRC compatible and can go into IRC mode. What this means is that the tool can make itself an IRC gateway for your terminal, providing that you already defined a dedicated IRC port in the INI file.

If you are developing a network tool and want to test its functionality or test out various options and features, then perhaps you can consider giving InternetModem a try.