AT Commands and S-Registers
B-5
Issue 1 April 1994
Table B-1. AT Command and S-Register List (4 of 34)
AT
Command/
S-Register
Description
DL
Dial Last Number
Redials the last telephone number dialed. For this
command to work properly, at least one valid ATD
command must have been issued since the
DataPort 2001 was turned ON.
DS=
n
Dial Stored Number
Dials telephone number stored in directory
location
n
(where
n
is 1 or 2). The DataPort 2001
supports two telephone directory entries. (See
&Z.)
E
n
Command Character Echo
Allows characters entered at your keyboard to be
displayed on your monitor.
E0
Disables echo
E1
Enables echo
H
n
Hook Control
Determines if the DataPort 2001 is on-hook
(ready for a call) or off-hook (connected or busy)
H0
On-hook
H1
Off-hook