sroyalty

Admin SMS Alert sends a SMS Message (Text) to the provided cell phone on the chosen carrier for selected alerts. 
Alert examples are for comments awaiting approval/spam, approved/disapproved comments, and new pingbacks.
ASMSA is compatible with most US, Canada, and several other countries’ cell carriers including Google Voice. 
 United States 
 Canada 
 Denmark 
 Germany 
 India 
 Italy 
 Norway 
 Singapore 
 Sweden 
 United Kingdom

Admin SMS Alert

Admin SMS Alert sends a SMS Message (Text) to the provided cell phone on the chosen carrier for selected alerts.

tradesouthwest

Text Messaging to a phone from your WordPress Admin panel is as easy as pie using TextToMe plugin by Tradesouthwest. Covers the top ten mobile carriers in the US. Enter cell phone number then select carrier and write the message. Does not get much easier than that. 
This plugin may not work on all servers. Use caution on production sites.
<h3>Features</h3>
<ul>
<li>Ten United States carriers included</li>
<li>Validation for 10 digit only phone numbers to avoid long distance texting</li>
<li>Will add carriers as I get them</li>
</ul>
<h3>Plugin License</h3>
This plugin compatible with the GNU General Public License v3.

TextToMe

Text Messaging to a phone from your WordPress Admin panel.

Admin SMS Alert vs TextToMe