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included in US-originated communications software and terminal
emulators are for specific 'smart' modems not available
elsewhere--and there is no way of altering the software to work with
other equipment. In general, each modem that contains an auto-dialler
has its own way of requiring instructions to be sent to it. If an
auto-dialling facility is important to you, check that your software
is configurable to your choice of auto-dial modem.
Another hazard is that certain auto-diallers only operate on the
multi-frequency tones method ('touch-tone') of dialling used in large
parts of the United States and only very slowly being introduced in
other countries. The system widely used in the UK is called 'pulse'
dialling. Touch-tone dialling is much more rapid than pulse dialling,
of course.
Finally, on the subject of US-originated software, some packages
will only accept phone numbers in the standard North American format
of: 3-digit area code, 3-digit local code, 4-digit subscriber code.
In the UK and Europe the phone number formats vary quite
considerably. Make sure that any auto-dial facility you use actually
operates on your phone system.

Format Screen - Most professional on-line and time-share services
assume an 80-column screen. The 'format screen' option in terminal
emulators may allow you to change the regular text display on your
micro to show 80 characters across by means of a graphics 'fiddle';
alternatively, it may give you a more readable display of the stream
from the host by forcing line feeds at convenient intervals, just
before the stream reaches the right- hand margin of the micro's
'natural' screen width.
Related to this are settings to handle the presentation of the
cursor and to determine cursor movement about the screen-- normally
you won't need to use these facilities, but they may help you when
on-line to some odd-ball, non-standard service. Certain specific
'dumb' terminals like the VT52 (which has become something of a
mainframe industry standard) use special sequences to move the cursor
about the screen--useful when the operator is filling in standard
forms of information.
Other settings within this category may allow you to view
characters on your screen which are not part of the normal character
set. The early Apples, for example, lacked lower case, presenting
everything in capitals (as does the ZX81), so various ingenious
'fixes' were needed to cope. Even quite advanced home computers may
lack some of the full ASCII character set, such oddities as the tilde
~ or backslash \ or curly bracket { }, for example.

Re-assign - keyboard A related problem is that home micro keyboards
may not be able to generate all the required characters the remote
service wishes to see. The normal way to generate an ASCII character
not available from the keyboard is from Basic, by using a Print
CHR$(n) type command. This may not be possible when on-line to a
remote computer, where everything is needed in immediate mode. Hence