Zenith Z-170, Owner'S Manual, Page: 118 / 147

B.24
Appendix B
Hayes Auto Dialing Protocol
Commands
Each command in the Hayes auto dialing protocol follows the same format,
as shown below, except for the
"
N
'
command which is described later.
<>
{ }
AT
<AT><Command>{Argument} { = n} {More} <CR>
Indicate that these "fields" must be included as part of the
command line.
Indicate that these "fields" may not be necessary as part
of the command line.
Attention code to let the modem know a command will
be following. Must be in capital letters.
Command
One or two letter command. Functions of the different com­
mands follows.
Argument
= n
More
CR
An
optional field that further defines the command.
Used when setting a register. These registers may be used
to change certain default options.
Commands may be strung together in one command line
as long as 40 characters. AT (attention code) is only needed
at the beginning of the command line.
Carriage return or enter key. Tells the modem to execute
the previous command(s).
NOTE: In the following commands, "r" and "n" are used as variables;
"n ... n" means that an item can be repeated as many times as necessary
(up to 40 characters).