SMSify is a 2-way SMS plugin that sends, receives and schedules SMS messages. It integrates with Contact Form 7 and just about everything else.
SMSify is a premium WordPress plugin that allows you to send or schedule personalised SMS messages to your WordPress Users. SMSify can also receive SMS and display them in your WordPress dashboard. This plugin allows you to import contacts from a csv file. It features a native WordPress interface that is very simple to use. It integrates with Contact Form 7 and just about everything else. Screenshots available.
Full list of features: