telnet connection

Error :

• EOK if no error.
• EARG if the object is nil.
• ETYPE if a object type error occurs. The VM could exit and more informations could be found in the log file (if activated in the debug mode level).
• EDOM if the callback type is undefined for this object. The VM could exit and more informations could be found in the log file (if activated in the debug mode level).