Black Box 32144 Manual page 85

NOTE
L may also be used in V.25
bis mode with the CRN
command (instead of AT D),
in Dumb mode and in 208
operation. In Dumb mode or
208 operation, L is stored
via the PHONE screen. In all
cases, L is used the same
way and has the same
function as described here
(except that AT D is not
used.)
Two or more addresses may
be linked in a cyclic fashion to
alternate dialing until a connection
is established.
Contents of memory location 0:
555-1212 L1
Contents of memory location 1:
444-1234 L2
Contents of memory location 2:
888-5555 L0
With the memory locations
loaded as shown above, if the
command AT DS=0 is issued, the
autodialer will go to location 0 and
dial the number stored there. If
unable to connect, the L1
command stored in location 0 will
direct the autodialer to dial the
number in location 1. In similar
fashion, the L2 stored in memory
location 1 directs the autodialer to
location 2 (assuming a connection
cannot be made); and the L0
command stored in location 2
directs the autodialer back to
location 0. The numbers will be
CHAPTER 5: Hayes Emulation Mode
dialed in a loop until a connection
can be established or until 10 calls
have been attempted.
O —FORCED ON-LINE. This
command applies to asynchronous
operation only. When the modem
is on-line, you can return to the
command state by entering the
escape code (+++). After the
desired command has been
executed, use the O command
to force the modem from the
command state to the on-line state.
P—PULSE DIAL. The P
command instructs the modem to
pulse dial. It can be entered
anywhere in the dialing string:
AT P5551212; or it can be entered
alone, followed by a carriage
return, AT P, in which case all
subsequent telephone numbers
will be pulse dialed. If the dial
command does not specify which
dialing mode to use, the modem
defaults to the last mode specified.
S—MODIFY S REGISTER.
This command is used to write
information to a specified S
register. The syntax is Sr=n, where r
is the number of the register to be
modified and n is the value to be
written to it; for example:
AT S7=30
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