Telnet is an application protocol used on the Internet or local area network to provide a bidirectional interactive text-oriented communication facility using a virtual terminal connection.
You will be prompted with the following error ‘telnet’ is not recognized as an internal or external command’ when Telnet is not installed on your device. Because Telnet is relatively not secure as SSH, it is disabled by default in windows. below are the links to have telnet installed on your device via the command-line or GUI
– Here are the steps to install Telnet via the command line, https://techdirectarchive.com/2020/05/16/how-to-install-telnet-via-the-command-line/
– How to install Telnet via the command line and GUI in Windows 10 and Windows Server, https://techdirectarchive.com/2020/04/07/error-telnet-is-not-recognized-as-an-internal-or-external-command-and-how-to-install-telnet-via-the-command-line-and-gui-in-windows-10-and-server-2019/