140 lines
6.3 KiB
Plaintext
140 lines
6.3 KiB
Plaintext
Dial is used to communicate with a dedicated Ven-Tel MD212 PLUS Modem.
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The MD212 PLUS is a dual speed modem providing 300 and 1200 baud, PLUS
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an integral telephone dialer. Dial's primary utility is in dialing
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out to some other computer installation, with the advantage that text
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files may be sent or captured from the DEC-20 to the remote host.
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To use dial, say DIAL to the exec:
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@DIAL
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Dial Version 1.1 -- The VenTel AutoDialer Program
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Aren't you glad you use Dial? Don't you wish everyone did?
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VenTel Baud rate: ? Terminal speed (300 or 1200)
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VenTel Baud rate: 300
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The default Escape character is "^Z".
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Hit one or two <CR>'s to establish connection to the VenTel.
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Please DON'T access Telenet Via VEN-TEL!
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At this point, we type a couple of carriage returns (<CR>'s) to get
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the attention of the MD212 PLUS:
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VEN-TEL 212-PLUS 1.06
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300 BAUD
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$H ; Ask for Help
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COMMANDS ARE:
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K DIAL FROM KEYBOARD
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S1-S5 STORE/CHANGE NUMBER ; DON'T CHANGE 1-3!
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1-5 DIAL STORED NUMBER
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R RE-DIAL LAST NUMBER
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F RE-DIAL FOREVER ; Keep trying last number
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D DISPLAY STORED NUMBERS
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C CLEAR NUMBERS ; DON'T DO THIS!!!
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B BUSY OUT ; Don't know what this does...
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Q QUIT
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H HELP
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$D ; Display stored numbers
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#1 9696000% ; BNR Inc's Gandalf KCS
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#2 4970061%% ; Stanford SCORE (DEC-20)
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#3 8578644% ; HP Labs Hulk (DEC-20)
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#4
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#5
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$QUIT ; exit the command loop
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Ven-Tel MD212 commands are one two letters or digits, and fairly
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self-explanitory from the Help (H) description. There is the ability
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to store commonly used numbers. However, it is requested that the
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first three stored numbers be left as they are. When storing numbers,
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or when dialing from the keyboard (K), two characters may to used to
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insert delays in the dialing sequence. (This may be necessary to
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allow time for the remote phone to answer and establish carrier). An
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percent sign (%) inserts a short delay, and a ampersand (&) inserts a
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long delay. Usually, one or two short delays are required.
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To abort an in-progress operation [like the Repeat Forever (R)
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command], type a character.
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Once the requested number has been dialed, and a connection
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established, it is possible to get back the DEC-20 by typing the
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current Escape character. The default Escape character is Ctrl-Z:
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^Z ; The Dial Escape character is typed...
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Dial>? Command for Dial one of the following:
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CONTINUE ESCAPE EXIT HELP LOG
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NOLOG NOSEND SEND
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We are now talking to Dial escape mode. The SEND command allows us to
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send a file (by simulating us typing it). The LOG command can be used
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to capture a remote file, or just to keep a log of our session. If
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you need to send the current escape character to the remote host, you
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can change it with the ESCAPE command. After any of the Dial escape
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mode commands, you will want to either CONTINUE the remote dialog, or
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EXIT Dial. The following is a brief summary of Dial escape mode
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commands:
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Dial>hELP
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The Dial escape mode allows the user to exit, log output or send
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a file. The commands are:
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CONTINUE - Continues the Dial remote dialog
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ESCAPE - Sets a new Dial escape character
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EXIT - Returns to the monitor
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HELP - Prints this message
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NOLOG - Discontinues output logging
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NOSEND - Discontinues a file send
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LOG - Logs output to a file
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SEND - Sends the contents of a file
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Dial>exIT (to monitor)
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Done.
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If the autodialer is in use when you try to run Dial, you will be
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informed of this fact, along with the name of the person who is
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currently using Dial:
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@DIAL
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Dial Version 1.1 -- The VenTel AutoDialer Program
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Aren't you glad you use Dial? Don't you wish everyone did?
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Don't you wish MILLIGAN didn't?. Please try again later.
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Done.
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Known limitations:
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The autodialer expects the thing you dial to break connection
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(drop carrier) when you are done. If you access TeleNet via
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Dial (either by dialing the Gandalf, or directly) you will
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leave the autodialer attached to TeleNet until it is reset
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manually. Moral: DON'T ACCESS TELENET VIA DIAL!!!
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Sometimes, the autodialer will be available, but will not
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respond to the <CR>'s to allow you to dial. What this usually
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means is that the VenTel has already recognized the baud rate
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for a session, and it isn't the one you want to use. To correct
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this, EXIT Dial and run it again, specifing the "other" baud
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rate (this is easy: there are only two, namely 300 and 1200 baud).
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You should now be able to establish a connection with the VenTel.
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You should then Quit (Q), EXIT Dial, and run it again, using the
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baud rate you wanted in the first place.
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Another limitation is related to the SEND and LOG commands, related
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to flow control (XON/XOFF). The DEC-20 cannot handle high rates
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of terminal input, and the way that Dial is set up, the remote
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host output (including echos) is terminal input to the DEC-20.
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If the DEC-20 is having problems keeping up, it will send XOFF
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(Ctrl-S) to the "terminal" to tell it to shut up. When it can
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handle more input, it will send XON (Ctrl-Q) to the terminal to
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resume "input". If the remote host can't handle XON/XOFF, there
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will be problems in trying to send or capture files using SEND
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and LOG.
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This program is not supported. However, it's developer (and prime user)
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is Patrick Milligan, and you may send bugs, complaints, comments, and
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praise to him. [Money would also be greatly appreciated!]
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