To allow HSNM to send and receive SMS and you do not want to use an external SMS gateway, you have to connect the GSM modem, supplied with HSNM hardware, into:
Before connecting the GSM modem to the HSNM hardware, you must insert a SIM card, active and traffic enabled in the modem.
Important! Verify that the SIM is not PIN protected.
For subsystem versions lower than or equal to 1.9, the lower USB port is the primary USB port (in general for the main modem), while the upper one is the secondary USB port (in general for the additional modem).
After having logged to the web administration interface, click on the “Admin” tab and select “ System Settings “.
In the field “Primary modem type”, the type of connected modem will be recognised and automatically displayed. Fill in the respective fields “Message centre number” and “Number”.
Click on the “Save” button on the top right corner and then the “Reboot services” button to complete the modem configuration.