INT 61 - Banyan VINES - ASYNC TERMINAL EMULATION - GET CONNECTION INFORMATION
        AX = 0003h subfn 12h
        DS:BX -> argument block (see below)
Return: AX = status (see AX=0003h/SF=00h)
SeeAlso: AX=0003h/SF=11h,AX=0003h/SF=15h

Format of argument block:
Offset  Size    Description
 00h    BYTE    session ID (00h)
 01h    BYTE    12h (function "get connection information")
 02h    WORD    offset of buffer for connection information (see below)

Format of connection information:
Offset  Size    Description
 00h    WORD    length of service name (returned)
 02h    WORD    pointer to 64-byte buffer for service name
 04h    BYTE    type of connection
                00h connection name
                01h dialout
 05h    WORD    length of connection name/telephone number
 07h    WORD    pointer to 64-byte buffer for name/telno
 09h    BYTE    server line number being used (returned)

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