RealMint is an ANSI terminal emulator and telnet client written completely in JavaScript. When installed, RealMint lets you login to your server from a web browser using telnet and an encrypted HTTPS tunnel.
JTelnet is a simple telnet library for Java with a few demo applications. One is a simple command line telnet, another is a Swing component that includes VT100 emulation.
This serial client in JAVA allows sending, reading and writing of SMS via a serial COM port. The tool uses the PDU SMS format. IRDA drivers are included. The functionality can be implemented into applications for remote alerting or SMS authentification.