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- WWIV Modem Documentation
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- By William Daystrom
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- Copyright (c) 1989 White Star Software
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- WWIV Modem Documentation
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- One of the more tedious aspects to configuring your bulletin board is
- modem setup. There are countless brands and variations of modems on the
- market, and despite standards, most have slight differences in the way
- they will work best with WWIV. However, once you have your modem
- functioning correctly with WWIV, you probably will never have to bother
- with modem init functions again until you acquire a different modem.
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- If you are intending to be a sysop, it is generally assumed that you
- know enough about your modem to at least have it operating correctly
- with your computer. Therefore, this part of the documentation will not
- detail how to install your modem. It will show you how to configure your
- modem to work with the BBS, as running a bulletin board requires special
- settings.
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- A word about modem cables. It is possible for your modem and cable to
- work perfectly well with your terminal program, yet not work with the
- BBS. This is because the BBS requires certain information to be carried
- between the modem and the computer that is ordinarily not required by
- normal use. The vast majority of modem cables manufactured today will be
- fine with WWIV. If you constructed your own cable, however, you must be
- sure that the following pins are connected (on the DB-25): 2, 3, 7, 8,
- and 20.
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- Now on to modem settings. Your modem will need to tell the BBS
- information to enable it to answer and terminate calls correctly. The
- first important setting is the carrier detect, or CD. Most modems have
- two possible settings for this parameter, either always on, or carrier
- is monitored. The second setting is required to enable the BBS to detect
- whether or not a caller is on-line. Most modems default to the first
- state, however, so you will usually have to change this setting so that
- carrier is monitored.
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- Modems vary in how they may be configured. More modern modems utilitze
- software switching to alter default states. In simple language, this
- means that your modem will alter its configuration based on commands
- given to it from a computer program (such as a terminal program). For
- example, with Hayes compatible modems, the command "ATZ" tells the modem
- to reset to default configuration. Other modems use physical switches to
- alter the default characteristics of the modem. If your modem has such
- switches, your modem manual will describe what each of them controls,
- and how to change them. In either case, the first goal is to alter your
- modem's configuration so that it will monitor carrier. With physical
- switch modems, locate the proper switch and make sure it is in the
- position for CD monitoring. With software-switch modems, your task is
- easier. Using the INIT program, you can alter the default initialization
- command issued to the modem each time you run the BBS. You can do this
- in Section 4 of INIT. Any commands you add to the command line must be
- entered just before the {. Your modem manual will tell you what the
- correct command is to monitor carrier. With many modems of this type,
- &C1 is the command needed to track carrier. Check your modem manual
- anyway to verify.
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- WWIV Modem Documentation
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- The second important modem setting is Data Terminal Ready, or DTR. It
- is used by your computer to control carrier. When DTR is turned off,
- the modem will drop carrier and hang up on the caller. As with CD, most
- modems are configured incorrectly for BBS use. There are two common
- settings for DTR: controlled and ignored. When DTR is monitored and
- controlled, your computer is capable of instructing the modem to drop
- carrier. When DTR is ignored, the computer cannot do this. Obviously,
- for bulletin board operation, DTR will need to be controlled. You can
- change this default by using the same procedure you used to alter the CD
- default. With most modems of the software-switch type, &D2, added to the
- modem init string in INIT, is the correct command.
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- Special Modem Requirements
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- There are a wide variety of modems available in the marketplace today,
- and many of the newer ones require special configuration to work with
- WWIV. It is beyond the scope of this documentation to detail the steps
- needed to make all modems fully compatible with WWIV. Therefore, try
- to install your modem following the guidelines already presented. If
- you still have difficulty, contact the sysop of a WWIV Support BBS.
- See the text file, SUPPORT.LST, for a listing of support systems.
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