Int 14 Fn E2  - Telapi - "telread" - Buffered Read                         [N]

   AH = E2h
   BX = connection ID (see AH=E0h"TelAPI")
   CX = length of buffer in bytes
   ES:SI -> buffer for data

Return: AX > 0000h number of characters actually read
   AX = 0000h host has closed connection
   AX < 0000h error code (see #0323)

Note:  translates CRLF into local EOL if the connection is in ASCII mode,
     negotiates various Telnet options, and immediately executes several
     different Telnet action commands

See Also: AH=07h"TelAPI",AH=E3h,AH=E6h,AX=FF00h,INT 6B/AH=01h