PC Gen: Contents of Modem Script File NULLMODM.MDM

Last reviewed: January 25, 1996
Article ID: Q80261

The information in this article applies to:

Microsoft Mail for PC Networks, version 2.1e

The following is the contents of the Microsoft Mail version 2.1e modem script file NULLMODM.MDM, which can be compiled with SCRCOMP.EXE:

;********************************************************************* ;

;                    Microsoft Mail Script File
;
;       Filename: nullmodm.mdm
;       Date    : March 21, 1990
       Script  : Standard script file for null-modems

; ; This script file contains the strings used in the calling ; sequence for null modem connections. Note that this used to be ; accomplished in version 1.0 and version 2.0 via the -Z option. ; ; Note that a "proper" null modem is wired in the following way: ;

;                       1_____1
;                       2__ __2
;                       3__X__3
;                       4__ __4
;                       5__X__5
;                       7_____7
;                       6_____20
;                       8_/
;                      20_____6
;                           \_8
;

; If your null modem is not wired in this way then you could ; experience flow control problems and "lost carrier". ; ; If your null modem connection is via a device which requires ; some setup strings to be issued to initialized the device then ; insert the appropriate "send" commands in the INITIALIZE procedure. ; If the device must be reset after a connection the insert the ; appropriate "send" commands in the RESET procedure. ; ; Script procedures defined:

;       INITIALIZE
;       RESET
;       CALL
;       ANSWER
;       DISCONNECT
;

; Return codes for External, Transmit, Listen:

;       0  - OK
;       1  - CONNECT 300
;       2  - not defined
;       3  - NO CARRIER
;       4  - ERROR
;       5  - CONNECT 1200
;       6  - not defined
;       7  - BUSY
;       8  - NO ANSWER
;       9  - not defined

; 10 - CONNECT 2400 ; 11 - not defined ; 12 - CONNECT 9600 (high speed connection) ; ; ;*********************************************************************

INITIALIZE:

        title "Null Modem Script"

        return 0

RESET:

        return 0

CALL:

        $ret = 8               ; set default ret code to "no answer"

; If you previously used the -Z option with an optional setup string ; then uncomment the following line and insert your setup string ; between the double quote characters.

;       eg. send "\17"         ; send XON
;

;       send ""


        sendln "9"             ; send call signal to remote site

        waitrsp 1              ; wait until the modem responds

        if (response = "8^M")  ; has other side answered?
          {
          sendln "8"           ; if he has then send
          display ">>> CONNECT - NULL MODEM <<<"
          $ret = 12
          }
        else
          {
          display ">>> NO ANSWER <<<"
          $ret = 8
          }

        return $ret            ; return connect baud rate to
                               ;    application

ANSWER:

        $ret = 8               ; set default ret code to "no answer"

        waitrsp 1              ; see if phone is ringing

        if (response = "9^M")  ; 9 means "RING" for nullmodems
            {
            sendln "8"         ; answer the phone

            waitrsp 20          ; wait for return code from modem


            if (response = "8^M")
              {
              display ">>> CONNECT - NULL MODEM <<<"
              $ret = 12
              }
            }

        return $ret            ; return connect baud rate to
                               ;    application

DISCONNECT:

        dtr 0                  ; drop DTR signal for a few seconds

        clearrsp               ; clear the response buffer

        wait 4                 ; give other side time to recognize
                               ;    lost carrier
        dtr 1                  ; raise it back again
        return 0

Additional reference words: 2.10 2.1 2.10e
KBCategory: kbtool kb3rdparty
KBSubCategory: MailPCGen

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Last reviewed: January 25, 1996
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