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110 MultiModemISI Hybrid Series, ISIHI-2S
Chapter 5—TERMINAL ADAPTER AT Commands, S-Registers, Result Codes
Terminal Adapter
Storing a Telephone Number
To store a telephone number, type
&Zn=x
in terminal mode, where
n
is the number of the
memory register in which the number is to be stored, and
x
is the dial command string
that you want to store. For example, type AT&Z9=612-785-3500 <cr> to store the
number 612-785-3500 in memory register 9.
Dialing a Stored Telephone Number
To dial a stored telephone number, type
DS=n
in terminal mode, where
n
is the location
of the number you wish to dial. For example, type ATDS=3 <cr> dials a telephone stored
in memory register 3 location.
Displaying a Stored Number
To display a stored telephone number, type
&Zn?
in terminal mode, where
n
is the
memory register in which the number is stored. For example, type AT&Z5? <cr> to
display the telephone number in memory register 5. To list all ten telephone numbers
stored in memory, type ATL <cr>.
Answering a Call
You can answer incoming calls to the TA either manually or automatically. When the TA
detects an incoming call, it turns on the RI signal on the V.24 interface and sends a
RING
result code to the computer or terminal after each ring. If autoanswer is enabled, the TA
automatically answers the call. To manually answer the call, use the
A
command.
Answering Manually
If your communication program is in terminal mode when the
RING
result code appears
on your monitor, manually answer the call by typing
ATA <cr>
.
Answering Automatically
To cause the TA to answer a call automatically :
1. Enable autoanswer by setting register
S0
to the ring on which you want the TA to
answer (e.g., in terminal mode, type
S0=4
to make the TA answer on the fourth ring).
Youalso can use one of the configuration utilities to the turn autoanswer on and set
the number of rings.
2. Make sure that the TA is offline.
The TA will answer the call after the number of rings specified by
S0
. To disable
autoanswer, use a configuration utility or the command
S0=0
.
Note: If the user wants to accept calls while DTR is low, the TA must be configured to
ignore DTR. To ignore, enter AT&D0<cr>. With this configuration, the TA can accept calls
while DTR is low. If this configuration setting is not made, the TA rejects incoming calls
until DTR is high while the calls comes in.
Hanging Up
To hang up a call, first escape to online command mode (
+++AT<cr>
), then enter the
H
command (
ATH<cr>
). The escape sequence and hang up command can be combined
into one command string:
+++ATH<cr>
.