You’ll see here in this descriptive video about, how to send group text messages to thousand of recipients by using features of DRPU Text Messaging Application via Multiple USB Modems with MAC system.
Video describe here, how to establish connection between devices and system as well as between device and software via “Connection Wizard” for inserting phone contacts, for composing messages, for applying composed SMS, for sending it to applied SMS.
Device Used: Multiple USB Modems
Software Used: DRPU SMS Sending Software
View at DailyMotion