Group SMS Software Instant Communication Tool HomeDownload Order OnlineContact Us Home >> MAC Bulk SMS Software for USB Modems >> Screenshots MAC Bulk SMS Software for USB Modems Screenshots If no USB modem device is selected, click on 'USB modems Connection Wizard' button. Select Com Port from Connected Device List and view selected device details. Click on 'Use Selected Device to send SMS' button. Load recipient number either by Load Contact File or Add or Paste numbers Manually and send group messages by clicking on 'Send' button. Currently performing messsage sending process.