SMS Alarm Controllers

SUBJECT VIEWS FAQ TYPE MODEL LAST UPDATED DETAIL
When I send Modbus RTU command to change the contents of dynamic SMS and dynamic phone number, SMS-531 reply exception 2. How to solve this problem? 8 Troubleshooting 2021-11-12
I can’t make a good wav file. What kind of program do you offer for it? 2 Troubleshooting 2021-11-12
How to get the status of transmitting SMS? 8 Troubleshooting 2021-11-12
Please refer to the link below:

How to get the status of transmitting SMS?
How to use SMS-530 to trigger SMS with ON and OFF at a same channel? 7 Troubleshooting 2020-03-27
I cannot send out the message when we insert the phone number with “+“ in front of the phone number. 5 Troubleshooting 2020-03-27
I wrote in the hyperterminal +++hello and pressed enter 50 times, but my cellphone only receive 3 SMS. why it doesn't work and why sometimes it does work? 2 Troubleshooting 2020-03-27