We are glad to announce new CS-Cart add-on from our team - "Order status sms notifications" add-on.
This add-on allows administrator to send sms to customers notifying them about the current order status. The add-on works for customers' comfort and keeps them up-to-date about the order status.
Clickatell sms gateway is used by default. If Clickatell is not suitable for you, you can ask us to integrate another sms gateway for extra charge - approximately USD 40.
More details can be found here "Order status sms notifications" addon.
Best regards, Alt-team