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A-32 Configuration Quick Reference
Configuration
Quick-Reference
Callback
Callback Feature
Determines the source of the telephone number that your modem calls when it receives a valid
access security password from the remote modem.
NOTE: For details on access security and call features, see Chapter 2 of the
326X Series
Modem Reference Guide
.
AT
*
ZC0 =Off Callback is disabled.
AT
*
ZC1 – 9 =Intern 1 – 9 The answer modem performs the callback using the phone number stored in the specified
location (even if the calling modem provides a callback number).
AT
*
ZC10 =Remote The answer modem performs the callback using a number
provided by the remote user
. If the
calling modem does not provide a callback number and the password is valid, the modem
attempts a connection, without hanging up or calling back.
Only accessi-
ble from an
NMS
=Manager The NMS performs the callback using a phone number stored in its database that is associated
with the received ID code. This option is not accessible from the front panel or AT ACU and
displays only when selected by an NMS.
AT
*
ZC12 =Rmt Ind The answer modem performs the callback using the phone number stored at the specified
phone number index
provided by the
remote user
(1 – 9). If the remote device does not provide
a callback index, the modem attempts to establish a connection without hanging up or calling
back if AT
*
ZR0 (Rmt Num Rqrd=Off) is set.
DialRstrct
Dial Restricted
This command defines dial command limitations.
AT
*
ZD0 =Off No dial restrictions exist.
AT
*
ZD1 =Lvl1 The auto redial command is not allowed. The A/ command is not allowed if the previous
command was a dial command. In both cases, the modem reports an ERROR message to the
DTE.
AT
*
ZD2 =Lvl2 Lvl2 has the same function as Lvl1. In addition, only stored phone numbers may be dialed. The
ATD, V.25bis CRN, LPDA2 Hex 21, and the front panel Enter Then Dial options are not
allowed.
AT
*
ZI Enter Group
PW?
Enter Access Security Group Password
Lets you enter the password that your modem uses for access security.
Enter AT
*
ZIx<CR>, where
x
=maximum 10 characters; minimum one character
From the front panel, enter alphanumeric characters.
NOTE: For a detailed description of the modem’s access security and call features, refer to
Chapter 2 of the
326X Series Modem Reference Guide
.
Tone
Select Tones with Access Security
Controls the type of tones used by your modem to alert the caller to expect a callback and to
enter the access security password.
AT
*
ZP0 =None No tones are generated by the answer modem.
AT
*
ZP1 =Prompt Only Upon answering a call, the local modem sends the caller a dial tone. Thisis a prompt for the
caller to enter the access security password. This setting is intended for manual dialing only.
The dial tone lasts for the amount of time specified by S-Register 45. The caller must enter the
access security password in the amount of time specified by S-Register 46.
Table A-1.
AT Commands, Cross-Referenced to Front Panel Options (Continued)
AT
Command
Parameter &
Option Description
Gray shading indicates country-specific options. See Appendix C for your country’s options.