Universal Vision Technologies

Sends WooCommerce order and account related SMS notifications to customers and admin using UelloSend SMS Gateway, supports Ghanaian numbers only.
<h3>Notes</h3>
You will need to 
1. Register at https://uellosend.com and generate API Keys at https://uellosend.com/user-api.php . 
2. Register your SenderID at https://uellosend.com/register-brand.php and get it approved. 
3. Top up your account with credit before you can send messages

UelloSend SMS for WooCommerce

Sends WooCommerce SMS notifications using UelloSend SMS Gateway.

Xoxzo Inc.

This plugin triggers sms and voice call using xoxzo telephony service. 
Some triggers are based on woocommmerce email events.
The following are events that trigger sms/voice notification:
<ol>
<li>New order
<ul>
<li>Pending to processing/completed/on-hold </li>
<li>Failed to processing/completed/on-hold </li>
</ul>
</li>
<li>Cancelled order
<ul>
<li>Processing to cancelled</li>
<li>On-hold to cancelled</li>
</ul>
</li>
<li>Failed order
<ul>
<li>On-hold to failed</li>
<li>Pending to failed</li>
</ul>
</li>
<li>Order on-hold
<ul>
<li>Pending to on-hold</li>
<li>Failed to on-hold</li>
</ul>
</li>
<li>Processing order
<ul>
<li>Failed to processing</li>
<li>On-hold to processing</li>
<li>Pending to processing</li>
</ul>
</li>
<li>Completed order</li>
<li>Fully refunded order</li>
<li>Partially refunded order</li>
<li>Low stock</li>
<li>No stock</li>
<li>Order details(Resending order information)</li>
<li>Customer note</li>
<li>Reset password</li>
<li>New account</li>
</ol>

Xoxzo – SMS and voice notification plugin for WooCommerce

This plugin triggers sms and voice call using xoxzo telephony service.

UelloSend SMS for WooCommerce vs Xoxzo – SMS and voice notification plugin for WooCommerce