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3.
Place a call to the ISU 512 with the stored number to see if it answers.
4.
If the ISU 512 does not answer the call, look at the Call ID message in the
Status buffer. More than likely, the Call ID number is a ten-digit number
5.
Store the number in SN0 as it is displayed in the Call ID message and test
Call Screening again.
Remote Access
Remote Download (RDL)
The ISU 512 has the ability to download the contents of Flash Memory (soft-
ware) to another ISU 512 over a dial-up connection. By using a smart dial
string with a #7 suffix, the originating ISU 512 transfers its Flash Memory con-
tents to the remote unit. This allows software updates using only the ISDN
connection.
The ISU 512 can be protected from illegal software loads by using the pass-
word protection built into the remote protocol. Use the following menu path
to access the remote download (RDL) password:
3=CONFIG
The smart dial string format for this type of call is as follows:
<number>#7#<password>
For example, the dial string 9224323#7#1234 would place a remote download
call to the remote unit and send the 1234 string as the RDL password. If the
remote unit's RDL password is 1234 the request is accepted and the transfer is
completed. If the password does not match, the call is terminated by the re-
mote unit. The remote unit places Inv Password in the status buffer.
The password may be up to six alphanumeric characters in length. If no RDL
password is entered, the unit is unprotected and all attempts to update are ac-
cepted.
61202.086L1-1
1=Netw. options
1=Dial Line
8=Passwords
2=RDL Password
ISU 512 User Manual
Chapter 5: Configuration
35
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