Int 14 Fn EC  - Telapi - "telnblkopen" - Create Telnet Connection (non-bl  [N]

   AH = ECh
   BX = port number to connect with (default 0017h used if <= 0)
   CX:DX = Internet address of remote host
   DS:DI -> 2-byte remote host (connection) identifier
   ES:SI -> 1700-byte buffer for Telnet state record
       0000h:0000h to use TelAPI internally-allocated space

Return: AX = status (0000h-0009h,FED3h,FF37h,FFBDh,FFC0h,FFCDh) (see #0323)
   ES:SI buffer filled with state record
   ES:SI -> internally-allocated state record in some versions

Notes: the remote host identifier may be used to refer to this connection
   this function returns immediately; use AH=EDh to check whether the
     connection has been established yet
   this function is not supported by the Microdyne TelAPI v3.7

See Also: AH=E0h"TelAPI",AH=EDh,AX=FF00h