Extension will notify customers and store admin using spring edge sms gateway. Configure auth key, sender name from admin area and it will integrate sms features into your opencart store. When an order is placed, shipped or status changed you can confirm with your customer and/or store admin via a text message sent directly to their mobile phone on events like
* Send sms on new order place.
* Send sms on order status change.
* Send sms on account registration.
* Notify store-admin on new order and registration.

You can write to contact@springedge.com or visit http://www.springedge.com for any query / feedback.