Screenshot shows connected device list. Select device and click on “Use Selected Device to Send SMS”.
Screenshot shows E7131 USB Modem on (COM8) is selected. Load contact numbers using Import and Composing options and click on “Send” button to send messages.
Message sending process is going on.
Mac Bulk SMS - Professional
Mac Bulk SMS - Multi Device
Mac Bulk SMS for GSM Phone
Mac Bulk SMS for Android Phone
Mac Bulk SMS for USB Modem