Int 14 Fn E7  - Telapi - "tellist" - Get Telnet Session List               [N]

   AH = E7h
   ES:SI -> 10-word buffer for session list

Return: AX = 0000h (successful)
   ES:SI buffer filled
Desc:  determine, for each of the ten allowable sessions, whether the session
     is currently available

Note:  each word in the buffer is filled with either 0000h to indicate that
    the corresponding sesion is unavailable, or 0001h if available

See Also: AH=E0h,AH=E5h,AX=FF00h