Voice SMS is a fast way to send a short message to another mobile subscriber that can be retrieved at the subscriber's convenience. In that sense it is similar to an SMS text message. But Voice SMS is much easier to use. There are no keystrokes needed to compose the message.
Bulk voice calls are pre-recorded voice messages to a mobile or landline networks across the country. Voice Call enables you to communicate with your customers by calling their Mobile/Land phone numbers anywhere in India with a pre-recorded voice message through a fully automated Online System.