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1 Introduction
1.5.3 Configuring the AT Interfaces
A possible next step would be to configure the AT interfaces so that the installed modems operate correctly. The ne-
cessary parameters are as follows:
• Speed: The possible speeds that can be configured are as follows: 2400, 4800, 9600, 19200, 38400, 57600 and
115200. We recommend configuring the speed immediately above the speed of your modem. I.e. if you have a
33.6K modem (33600), configure 38400; if you have a 56K modem then configure 57600 etc.
• AT Commands: AT commands configuration depends on your modem. The majority of the modems operate with
the default configuration in the device. Please consult the manufacturers manual for the modem to find out which
commands are valid for your modem.
• It is also very important to stress that the data bits must be 8 therefore the Data bits parameters should not be
modified. It's also quite common for the Parity parameter to be set to NONE and the Stop bits to 1.
Subsequently, we will show the commands sequence in order to configure the speed and the AT commands. As you
can see the default configuration has been respected, as it is perfectly valid for the modem in the example, however
this serves as an example for the commands syntax.
Config>network 1
-- Interface AT. Configuration
serial0/0 AT config>?
additional-control-command
connection-mode
cts-control-command
data-bits
dcd-control-command
description
dial-mode
disable
dsr-control-command
dtr-control-command
enable
flow-control-command
frame-size
list
no
number-rings
parity
ring-tone-length
shutdown
speed
stop-bits
update
v42-control-command
wait-time
exit
serial0/0 AT config>speed 57600
serial0/0 AT config>additional-control-command no-command
serial0/0 AT config>cts-control-command &R0
serial0/0 AT config>dcd-control-command &C1
serial0/0 AT config>dsr-control-command &S0
serial0/0 AT config>dtr-control-command &D2
serial0/0 AT config>v42-control-command &Q5
serial0/0 AT config>
Note
For further information on AT configuration, please consult manual ALU-Dm705-I Generic Serial Inter-
faces.
1.5.4 Configuring the ISDN Interfaces (BRI)
Here we will begin to configure the ISDN base interface. Normally the device default configuration is adequate
provided its base interface corresponds to the European standards. In this case we recommend that you do not
modify any of the parameters.
12
--
Set aditional AT commands
Set connection mode (Dial command or DTR)
Set AT command for CTS signal control
Set number of bits per character
Set AT command for DCD signal control
Enter interface description
Set dial mode (tone or pulse)
Disable some features
Set AT command for DSR signal control
Set AT command for DTR signal control
Enable some features
Set AT command for flow control
Set frame size
List configuration
Set default config
Set number of rings for auto answer
Set character parity
Set ring tone and silence lengths
Change state to administratively down
Set speed
Set number of stop bits per character
Update a level indicator
Set AT command for V.42 comp/error correction
Set maximum connection time
Return to previous menu
Alcatel-Lucent Enterprise
Dial Routing
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