Home --› Mac Text SMS Software for USB Modems --› Mac Text SMS Software for USB Modems Screenshots Mac Text SMS Software for USB Modems Screenshots Above screen shows connected device list with all details. Select any device to send text messages and Click on "Use Selected Device to Send SMS" button. Load Contacts From File” to load contact numbers. Type message, which you want to send. You can select 'Delayed Delivery', 'Use Exclusion Rules', 'Save Sent Items' and other options. Click "Send" button to send sms. Message Sending Process is going on. You can Export Sent Items in .txt and .html file formats.