Installation manual
Duet2 D2600 / Duet3 D2650 Installation Manual – EU-D2600-D2650-INST/A10/v1  - 16 
18.4 Remote Reset 
This is a specific command to operate Output 4. Output 4 timer should be set for 3 seconds duration. 
The format of the command is ‘RR’. It operates in exactly the same way as the commands ON 4, or 
141, or O 4 ON. 
A reply will be sent to the calling phone: Duet: Remote Reset. 
18.5  SMS number change 
Sending the keywords SMS1 or SMS2 will cause the Duet to extract the calling phone’s number from 
the incoming SMS message and store it in SMS number 1 or 2. (SMS0 will store it in both). 
A reply will be sent to the calling phone: Duet: SMS number changed >+447890123456. 
18.6 Account number 
There are 4 account numbers. This command is in the format ACn aaaaaa, where n is 1 for GSM, 2 
for PSTN, 3 for GPRS, 4 for LAN and 0 will change all 4. ‘a..a’.is the account number (up to 6 digits 
long). If the account number is blank, it will be erased. 
The numerical equivalent of this command is 20, 21, 22, 23, 24. 
 Note: In the Duet only the PSTN account number is used. Thus only commands AC0, AC2, 20, 22 
should be used. 
A reply will be sent to the calling phone. e.g. Duet: Account changed>1234 
18.7  GPRS IP address and port 
The 4 GPRS IP addresses and port numbers may be changed by using the commands 3n and 5n 
respectively. For example 31 192.168.100.3 will change the first GPRS IP address. 53 5021 will 
change the third port number (i.e. the first polling port number). 
A reply will be sent to the calling phone. e.g. Duet: IP port changed>10500 
18.8  LAN IP address and port 
The 4 LAN IP addresses and port numbers may be changed by using the commands 4n and 6n 
respectively. For example 42 192.168.100.3 will change the second LAN IP address. 60 5021 will 
change all 4 port numbers. 
A reply will be sent to the calling phone.  e.g. Duet: IP addr changed>192.168.0.123 
18.9  Telephone and Callback numbers 
There are 2 telephone numbers for alarms, and one callback number. The command is 7n. For 
example 71 01895474474 will change the first telephone number, and 77 192.168.100.10:45678 will 
change the Callback number. Note the callback number should be an IP address for use by either 
GPRS or LAN. The command 70 will change both telephone numbers. 
A reply will be sent to the calling phone.  
e.g. Duet: Callback number changed>81.138.0.32:1205 
18.10 GSM numbers 
The 2 GSM numbers may be changed by using the command 8n. For example 81 078781234567 will 
change the first GSM number. 
A reply will be sent to the calling phone. e.g. Duet GSM number changed>07890123456 










