TCP Client for Android

Sollae Systems Co.,Ltd. has been offering embedded network solutions for serial devices and remote digital I/O control solution. (http://www.eztcp.com)

You are allowed to transmit and receive data after accessing specific server using TCP/IP communication. You can additionally transmit one of options(CR, LF, CRLF, NONE) at the end of the data. To use the 23 port will let you access telnet.