Datasheet

AT Command Set INSYS Modem 336/56k 4.1 (UL)
Command Description
AT*N<n>=<nr
>
Permitted numbers for selective call acceptance
Definition of 8 authorized phone numbers, for which modem access is permitted. Only if
the transmitted phone number matches a phone number that was entered in the list will
the modem report RING for an incoming call or will accept the call according to the set-
tings of ATS0 (the line RI is activated with each call, irrespective of that fact). The selec-
tive call acceptance is switched on and off with AT&A.
AT*Nn=<nr>
<n> Describes the storage location – range of values: 0..7.
<no> Permitted phone number consists of numbers and the wild card “*”
for exactly one character. The phone number may not contain sepa-
rators such as brackets or space characters. After they were entered,
the phone numbers are immediately saved in the power fail-safe
memory of the modem.
AT*N<n>=<nl> The memory N<n> allows all phone numbers ending in <nl>.
AT*N99= Deletes all existing entries in the list
AT*N? Displays all stored entries
Example: AT*N5=1234 allows all calls ending with 1234.
E.g.: 0175/9991234, 0941/8881234, or +4940/7771234
AT*N1=01234567** permits all calls from the block of numbers
01234567-00 to 01234567-99
AT*N99= Delete the list of permitted phone numbers for the selective call answer
The command AT*N99= deletes the entire list of phone numbers for the selective call
answer.
AT*N? Output of the list of permitted phone numbers
AT*N? activates the output of the entire saved list of permitted phone numbers for the
selective call answer.
AT%N Output of the last rejected phone number
For active selective call answer (AT&A1) , the last phone number, whose call was rejected,
will be displayed.
Note: This phone number is not saved in the power fail-safe memory of the modem.
ATO<n> Return to online data mode
If the modem is in online command mode, it will return to online data mode. If the mo-
dem is in offline command mode, it will report ERROR.
ATO0 Return to online data mode.
ATO1 Before the modem switches to online data mode, a retrain procedure is
provoked.
ATP Switch on pulse dialing method (deactivated for some models)
Starting with this command, each dial-up is performed with the pulse dialing method,
until an ATT or ATDT command switches it back to tone dialing.
62 July 06