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@t Ease with E-mail
Part 1: Practical Considerations
Section IV: Access toComputer Networks
What do I need to use computer communications?
The basic requirements are:
- a computer,
- a modem (explained in later sections),
- communications software (explained in later
sections),
- access to a telephone line or another connection
to computer networks,
- an account at the computer network where your
e-mail mailbox will be located.
Do I need a separate telephone line for my modem?
No, since neither the computer nor the telephone need
to be reserved exclusively for computer communications purposes. The telephone
line is only busy when it is actually being used by the modem.
Do I need a telephone line for computer communications?
No. A few networks use low-earth orbiting satellites
for computer communications (such as Healthnet, the University of Zambia,
or Muhimbili Medical Centre in Tanzania). Packet radio is another way
to exchange e-mail between two points, as is a line of sight microwave
connection. Satellite links, packet radio technologies and microwave links
can all provide useful alternatives to land- or cable-based communications
links. They can connect remote provinces in countries where the telecommunications
infrastructure is poor or nonexistent. For further information on this
type of connection, contact:
Volunteers in Technical Assistance (VITA)
1600 Wilson Boulevard, #500
Arlington, VA 22209, USA
Tel: +1-703/276 1800; fax: +1-703/276 1865
E-mail: vita@vita.org (or via Fidonet:
1:109/165)
Do I need a very sophisticated computer to use e-mail?
No. The software used to access most computer networks
works even with relatively old and slow computers. Technically speaking,
any Apple Macintosh or IBM-compatible machine can be made to work with
the software. Even an old IBM-compatible AT , XT , or 286 can run communications
software and connect to a modem.
Can I use e-mail from my computer at home and at the
office?
Yes. Your e-mail account is not at your own computer,
but at the host computer. You can call it up through any modem to access
your e-mail account. With off-line accounts, confusion may result if you
try to pick up e-mail via two separate computers, such as office and home,
since the mail received will then be stored on two computers instead of
one.
As a new e-mail user, what should be my first objectives?
- set up an e-mail account;
- learn to use your communications
software;
- learn how to send and
receive electronic mail.
Once you have done all this,
you will be able to contact other e-mail users. With their help and with
practice, learning will become progressively easier. During this learning
phase, the people who run the host computer or e-mail service will be
able to help with any problems you might have.
How do I go about getting myself an e-mail account?
A reminder: once you have found a local e-mail service
provider, you will have expert local partners at your disposal who can
give you further advice on how to set up your communications software,
what modem to buy, and what to do once you are connected to the host
computer.
- Set up an e-mail account
- The information provided in Part 3 of this handbook
will help you identify a local provider. Some offer free training to
new users.
If possible, go in person when you first approach
the people providing e-mail services. Sometimes this speeds up an
otherwise slow process.
- Set up your communications software
- This section deals mostly with on-line communications
software. Off-line software is more complicated to set up, and support
for doing so should come from your service provider.
Unless the e-mail service provider offers to
set up your computer, you will have to install the communications
software yourself (see Section VI for names of software packages).
In this case, you will need the following information to configure
the communications software.
Specifications of your modem connection:
- the speed of the modem: usually 300, 1200,
2400, 9600, 14,400 or 28,800 Baud;
- the port to which the modem is connected;
this must be a serial port, usually COM1 or COM2.
Details related to your e-mail account:
- the telephone number you must use to access
the host computer;
- line settings: you need three pieces of
information from your network to configure the modem, which will
read something like this: Eight Data Bits , No Parity , One Stop
Bit (can appear as 8-N-1 ); or Seven Data Bits , Even Parity , No
Stop Bits (can appear as 7-E-0 );
- your service provider will also give you
the maximum speed at which your modem can access the host computer,
and a setting known as the terminal emulation (TTY, ANSI-BBS, VT100,
VT102, etc.).
The above information will allow you to move
forward. Now enter this information into your communications program
by using its set-up procedures. Leave any settings for which you do
not have information as they are.
Even if you have installed your software exactly
as instructed, you may run into problems. In fact, you probably will.
For instance, despite having been properly connected, your modem may
refuse to dial. You may have to tell your modem to use pulse dialing
rather than tone dialing. This can be done by changing the ATDT setting
in the Dialing Command box to ATDP. The setting will depend on your
local telephone company. Or, to take another example, if your office
has an internal telephone system, you must tell the modem how to get
an outside line. This might be done by placing the prefix 9 before
the telephone number of the host computer. The service which administers
your e-mail account will be able to help you with these kinds of problems.
- Send and receive e-mail
- The final step is to send a message to someone.
In it, ask them to confirm they have received your message by sending
one back to your mailbox. If you receive it, you have successfully sent
your first e-mail, and successfully received a message as well.
Since procedures differ widely between countries
and service providers, it is impossible to go into greater detail
about how to obtain and set up your e-mail account. Specific information
should be available in the users guide for your software and e-mail
service.
The most important difference among service providers
is that some offer on-line services and others only off-line services.
Make sure you know which they offer before you subscribe.
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