This button will only works on Mobile Devices.
You can Send an SMS on your phone containing TXT GREENSPEK to this number SHORT_CODE.php?az=100010001
By default, all our DND sms is sent via our own Hosted SIM (We have several).
However, you can setup YOUR own SIM card as a DND sms sender.
This means that a number can be tied to your organization or brand so your clients or your sms recipients can associate the number with you.
This way, they get all their sms from YOUR specific sim instead of from our random SIMs.